| ID Source | ID |
|---|---|
| PubMed CID | 179 |
| CHEMBL ID | 3561873 |
| CHEBI ID | 15688 |
| MeSH ID | M0000137 |
| Synonym |
|---|
| nsc89727 |
| nsc-89727 |
| 51555-24-9 |
| unii-bg4d34co2h |
| acetyl methyl carbinol [un2621] [flammable liquid] |
| 2-01-00-00870 (beilstein handbook reference) |
| bg4d34co2h , |
| 1-hydroxyethyl methyl ketone |
| nsc7609 |
| .gamma.-hydroxy-.beta.-oxobutane |
| acetyl methyl carbinol |
| methanol, acetylmethyl- |
| 2,3-butanolone |
| nsc-7609 |
| 2-hydroxy-3-butanone |
| 2-butanone, 3-hydroxy- |
| CHEBI:15688 |
| gamma-hydroxy-beta-oxobutane |
| 2-butanone, 3-hydroxy-, (r)- |
| 2-butanone, 3-hydroxy-, (.+/-.)- |
| 1-hydroxethyl methyl ketone |
| acetylmethyl- |
| acetoin (natural) |
| hsdb 974 |
| dl-acetoin |
| ccris 2918 |
| 2-butanone, 3-hydroxy- (8ci,9ci) |
| (+/-)-3-hydroxybutan-2-one |
| (+/-)-acetoin |
| ai3-03314 |
| 2-butanone, 3-hydroxy |
| methanol, acetylmethyl |
| 3-oxo-2-butanol |
| butan-2-ol-3-one |
| nsc 7609 |
| einecs 208-174-1 |
| brn 0385636 |
| acethoin |
| un2621 |
| fema no. 2008 |
| 3-hydroxy-2-butanone |
| 513-86-0 |
| C00466 |
| 2-acetoin |
| 3-hydroxybutan-2-one |
| ACETOIN , |
| dimethylketol |
| acetylmethylcarbinol |
| acetoin, may exist as crystalline dimer |
| acetoin, natural, >=95%, fg |
| acetoin, >=96%, fcc, fg |
| FT-0695713 |
| H0225 |
| AKOS000121293 |
| LMFA12000020 |
| cas-513-86-0 |
| tox21_302518 |
| dtxcid304399 |
| dtxsid0024399 , |
| NCGC00256914-01 |
| FT-0621797 |
| AKOS017278202 |
| 3-hydroxy-butane-2-one |
| 3-hydroxy-butan-2-one |
| 3-hydroxy-2-oxobutane |
| 3-hydroxyl-2-butanone |
| acetoin (monomer) [fcc] |
| acetoin [fhfi] |
| acetoin dimer |
| acetoin (dimer) |
| acetoin [mi] |
| acetoin (dimer) [fcc] |
| acetoin [hsdb] |
| di-methylketol |
| 2,3,5,6- tetramethyl-1,4-dioxane-2,5-diol |
| acetoin (monomer) |
| acetoin monomer |
| Q-200581 |
| butan-2-one, 3-hydroxy- |
| un 2621 |
| 2-butanol-3-one |
| 2-hydroxy-3-oxobutane |
| CHEMBL3561873 |
| mfcd00004521 |
| F0001-1338 |
| acetoin, analytical standard |
| beta-oxobutane |
| b-oxobutane |
| acetoine |
| acetoin, >=96%, natural |
| Q223083 |
| butan-2-0l-3-one |
| acetoin (may exist as crystalline dimer) |
| 3-hydroxybutan-2-one (may include dimer) |
| D93492 |
| PD124062 |
| EN300-21639 |
| (s)-3-hydroxy-2-butanone |
Acetoin is a pheromone-like substance produced by gut-associated microorganisms in Drosophila. Acetoin serves as a high value-added platform with a broad range of applications, and can be effectively produced by Bacillus licheniformis.
| Excerpt | Reference | Relevance |
|---|---|---|
| "Acetoin (AC) is an important platform bulk chemical with versatile applications. " | ( Biotechnological production of chiral acetoin. Gao, C; Ma, C; Meng, W; Xu, P, 2022) | 2.44 |
| "Acetoin is a high-value volatile compound widely applied in the chemical, food, and pharmaceutical industries. " | ( High production of acetoin from glycerol by Bacillus subtilis 35. Petrov, K; Petrova, P; Tsigoriyna, L, 2023) | 2.68 |
| "Acetoin is an important four-carbon compound that has many applications in foods, chemical synthesis, cosmetics, cigarettes, soaps, and detergents. " | ( Biological Production of (S)-acetoin: A State-of-the-Art Review. Huang, RB; Li, JX; Xie, NZ, 2019) | 2.25 |
| "Acetoin is a pheromone-like substance produced by gut-associated microorganisms in Drosophila." | ( Maternally-transmitted microbiota affects odor emission and preference in Drosophila larva. Cortot, J; Farine, JP; Ferveur, JF; Habbachi, W; Roche, S, 2017) | 1.18 |
| "Acetoin serves as a high value-added platform with a broad range of applications, and can be effectively produced by Bacillus licheniformis. " | ( Metabolomics analysis reveals global acetoin stress response of Bacillus licheniformis. Chen, S; Chen, Y; He, P; Li, L; Li, S; Wang, D; Wei, X; Xu, Y; Yuan, H; Zhan, Y, 2019) | 2.23 |
| "S-acetoin (S-AC) is an important four-carbon chiral compound that has unique industrial applications in the asymmetric synthesis of valuable chiral specialty chemicals. " | ( Production of S-acetoin from diacetyl by Escherichia coli transformant cells that express the diacetyl reductase gene of Paenibacillus polymyxa ZJ-9. Ding, G; Gao, J; Li, FW; Xu, YY, 2013) | 1.46 |
| "Acetoin is a volatile compound widely used in foods, cigarettes, cosmetics, detergents, chemical synthesis, plant growth promoters and biological pest controls. " | ( Strategies for enhancing fermentative production of acetoin: a review. Lu, JR; Xiao, Z, ) | 1.82 |
| "Acetoin is a promising chemical compound that can potentially serve as a high value-added platform for a broad range of applications. " | ( Enhancement of acetoin production in Candida glabrata by in silico-aided metabolic engineering. Chen, J; Gao, X; Li, S; Liu, L; Xu, N, 2014) | 2.2 |
| "Acetoin is a common food flavor additive. " | ( Generation of acetoin and its derivatives in foods. Lu, JR; Xiao, Z, 2014) | 2.21 |
| "Acetoin in vinegar is an attractant to fruit flies when combined with acetic acid. " | ( Effective trapping of fruit flies with cultures of metabolically modified acetic acid bacteria. Akasaka, N; Fujiwara, S; Goda, I; Ishii, Y; Sakoda, H, 2015) | 1.86 |
| "Acetoin is a natural flavor and an important bio-based chemical which could be separated from fermentation broth by solvent extraction, salting-out extraction or recovered in the form of derivatives. " | ( Sugaring-out extraction of acetoin from fermentation broth by coupling with fermentation. Dai, JY; Guan, WT; Ma, LH; Wang, ZF; Xiu, ZL, 2017) | 2.19 |
| "Acetoin is a substance involved in the chemical communication of several other cockroach species and it seems plausible that the plant exploits the sensitivity of cockroaches to this compound to attract them to the flowers as part of the pollination syndrome of this species." | ( Cockroaches as pollinators of Clusia aff. sellowiana (Clusiaceae) on inselbergs in French Guiana. Gustafsson, MH; Kalinová, B; Teichert, H; Vlasáková, B, 2008) | 1.07 |
| "As acetoin synthesis is a proton-consuming process, we suggest that the acid sensitivity observed in thiamine-depleted cultures may be owing to an inability to produce acetoin." | ( Thiamine plays a critical role in the acid tolerance of Listeria monocytogenes. Fuchs, TM; Karatzas, KA; Madeo, M; O'Byrne, CP; O'Riordan, N; Utratna, M, 2012) | 0.89 |
| "Acetoin production is a novel method for quantifying and assessing the mode of action of inhibitors against L." | ( Acetoin production as an indicator of growth and metabolic inhibition of Listeria monocytogenes. Fleming, HP; Romick, TL, 1998) | 2.46 |
| "Acetoin is an important physiological metabolite excreted by many microorganisms. " | ( Acetoin metabolism in bacteria. Xiao, Z; Xu, P, ) | 3.02 |
| "Acetoin is a major extracellular product of Bacillus subtilis grown on glucose and other fermentable carbon sources. " | ( Regulation of the Bacillus subtilis alsS, alsD, and alsR genes involved in post-exponential-phase production of acetoin. Najimudin, N; Renna, MC; Winik, LR; Zahler, SA, 1993) | 1.94 |
| "Acetoin is an effective precursor in the biosynthesis of lipids." | ( [Acetoin metabolism in animal tissues]. Buko, VU; Ostrovskiĭ, IuM; Zavodnik, IB, ) | 1.76 |
Acetoin is oxidized to diacetyl by alpha-naphthol during the Westerfeld test in the absence or presence of air. Acetoin has never been found in urine before, and the other four acids have been found only rarely.
| Excerpt | Reference | Relevance |
|---|---|---|
| "Acetoin, which has one carbonyl group and an adjacent hydroxyl group, gave positive results, but methyl action (3-hydroxy-3-methyl-2-butanone) was negative, and subsequent tests supported the conclusion that acetoin is oxidized to diacetyl by alpha-naphthol during the Westerfeld test in the absence or presence of air." | ( Specificity of the Westerfeld adaptation of the Voges-Proskauer test. Collins, EB; Speckman, RA, 1982) | 0.99 |
| "Acetoin has never been found in urine before, and the other four acids have been found only rarely." | ( Carbohydrate fermentation by gut microflora in preterm neonates. Hall, MA; Lowes, JA; Mills, GA; Walker, V, 1989) | 1 |
| "Acetoin has been found in the ascitic liquid of Ehrlich and AS30-D tumor-bearing animals." | ( Formation and utilization of acetoin, an unusual product of pyruvate metabolism by Ehrlich and AS30-D tumor mitochondria. Baggetto, LG; Lehninger, AL, 1987) | 1.29 |
| Excerpt | Reference | Relevance |
|---|---|---|
| " Concerns over the inhalation toxicity of these compounds originate from the association between occupational exposures to ABF and adverse fibrotic lung effects, specifically obliterative bronchiolitis (OB) in the distal airways." | ( Toxicity studies of acetoin and 2,3-pentanedione administered by inhalation to Wistar Han [Crl:WI(Han)] rats and B6C3F1/N mice. , 2023) | 1.23 |
| Excerpt | Relevance | Reference |
|---|---|---|
| " On the other hand, high levels of acetoin were found out in portal plasma for early period after dosing of LAPC." | ( [Metabolism of lenampicillin hydrochloride. II. Metabolism of promoiety]. Aoyama, T; Awata, N; Noumi, K; Takaki, A; Uemura, Y, 1985) | 0.55 |
| " Seed bioassay and whole-plant dose-response experiments were conducted using commercial IMI herbicides." | ( Ser-653-Asn substitution in the acetohydroxyacid synthase gene confers resistance in weedy rice to imidazolinone herbicides in Malaysia. Ahmad-Hamdani, MS; Mazlan, N; Ruzmi, R, 2020) | 0.56 |
| " Delivery of trigger molecules using portable inhalers may facilitate regular administration of therapeutic proteins via next-generation cell-based therapies to treat chronic diseases for which frequent dosing is required." | ( Controlling therapeutic protein expression via inhalation of a butter flavor molecule. Bertschi, A; Charpin-El Hamri, G; Fussenegger, M; Stefanov, BA; Teixeira, AP; Xue, S, 2023) | 0.91 |
| Role | Description |
|---|---|
| metabolite | Any intermediate or product resulting from metabolism. The term 'metabolite' subsumes the classes commonly known as primary and secondary metabolites. |
| [role information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res] | |
| Class | Description |
|---|---|
| methyl ketone | A ketone of formula RC(=O)CH3 (R =/= H). |
| secondary alpha-hydroxy ketone | An alpha-hydroxy ketone in which the carbonyl group and the hydroxy group are linked by a carbon bearing one hydrogen and one organyl group. Secondary alpha-hydroxy ketones are also known as acyloins, and are formally derived from reductive coupling of two carboxylic acid groups. |
| [compound class information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res] | |
| Protein | Taxonomy | Measurement | Average (µ) | Min (ref.) | Avg (ref.) | Max (ref.) | Bioassay(s) |
|---|---|---|---|---|---|---|---|
| RAR-related orphan receptor gamma | Mus musculus (house mouse) | Potency | 0.1723 | 0.0060 | 38.0041 | 19,952.5996 | AID1159521 |
| [prepared from compound, protein, and bioassay information from National Library of Medicine (NLM), extracted Dec-2023] | |||||||
| Timeframe | Studies, This Drug (%) | All Drugs % |
|---|---|---|
| pre-1990 | 156 (28.36) | 18.7374 |
| 1990's | 55 (10.00) | 18.2507 |
| 2000's | 79 (14.36) | 29.6817 |
| 2010's | 199 (36.18) | 24.3611 |
| 2020's | 61 (11.09) | 2.80 |
| [information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023] | ||
According to the monthly volume, diversity, and competition of internet searches for this compound, as well the volume and growth of publications, there is estimated to be very strong demand-to-supply ratio for research on this compound.
| This Compound (57.29) All Compounds (24.57) |
| Publication Type | This drug (%) | All Drugs (%) |
|---|---|---|
| Trials | 0 (0.00%) | 5.53% |
| Reviews | 23 (4.02%) | 6.00% |
| Case Studies | 1 (0.17%) | 4.05% |
| Observational | 0 (0.00%) | 0.25% |
| Other | 548 (95.80%) | 84.16% |
| [information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023] | ||
| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|---|---|---|---|---|
| alpha-aceto-alpha-hydroxybutyrate alpha-aceto-alpha-hydroxybutyrate: RN given refers to cpd without isomeric designation | 2.39 | 2 | 0 | hydroxy fatty acid | |
| 2,3-diphosphoglycerate 2,3-Diphosphoglycerate: A highly anionic organic phosphate which is present in human red blood cells at about the same molar ratio as hemoglobin. It binds to deoxyhemoglobin but not the oxygenated form, therefore diminishing the oxygen affinity of hemoglobin. This is essential in enabling hemoglobin to unload oxygen in tissue capillaries. It is also an intermediate in the conversion of 3-phosphoglycerate to 2-phosphoglycerate by phosphoglycerate mutase (EC 5.4.2.1). (From Stryer Biochemistry, 4th ed, p160; Enzyme Nomenclature, 1992, p508). 2,3-bisphosphoglyceric acid : A bisphosphoglyceric acid that is glyceric acid carrying two phospho substituents at positions 2 and 3. | 1.96 | 1 | 0 | bisphosphoglyceric acid; tetronic acid derivative | human metabolite |
| acetoacetic acid acetoacetic acid : A 3-oxo monocarboxylic acid that is butyric acid bearing a 3-oxo substituent. | 6.92 | 1 | 0 | 3-oxo fatty acid; ketone body | metabolite |
| gamma-aminobutyric acid gamma-Aminobutyric Acid: The most common inhibitory neurotransmitter in the central nervous system.. gamma-aminobutyric acid : A gamma-amino acid that is butanoic acid with the amino substituent located at C-4. | 2.37 | 2 | 0 | amino acid zwitterion; gamma-amino acid; monocarboxylic acid | human metabolite; neurotransmitter; Saccharomyces cerevisiae metabolite; signalling molecule |
| 4-hydroxyphenylacetic acid 4-hydroxyphenylacetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens is substituted by a 4-hydroxyphenyl group. | 1.97 | 1 | 0 | monocarboxylic acid; phenols | fungal metabolite; human metabolite; mouse metabolite; plant metabolite |
| ethylene glycol Ethylene Glycol: A colorless, odorless, viscous dihydroxy alcohol. It has a sweet taste, but is poisonous if ingested. Ethylene glycol is the most important glycol commercially available and is manufactured on a large scale in the United States. It is used as an antifreeze and coolant, in hydraulic fluids, and in the manufacture of low-freezing dynamites and resins.. ethanediol : Any diol that is ethane or substituted ethane carrying two hydroxy groups.. ethylene glycol : A 1,2-glycol compound produced via reaction of ethylene oxide with water. | 1.97 | 1 | 0 | ethanediol; glycol | metabolite; mouse metabolite; solvent; toxin |
| acetic acid Acetic Acid: Product of the oxidation of ethanol and of the destructive distillation of wood. It is used locally, occasionally internally, as a counterirritant and also as a reagent. (Stedman, 26th ed). acetic acid : A simple monocarboxylic acid containing two carbons. | 4.78 | 30 | 0 | monocarboxylic acid | antimicrobial food preservative; Daphnia magna metabolite; food acidity regulator; protic solvent |
| acetaldehyde Acetaldehyde: A colorless, flammable liquid used in the manufacture of acetic acid, perfumes, and flavors. It is also an intermediate in the metabolism of alcohol. It has a general narcotic action and also causes irritation of mucous membranes. Large doses may cause death from respiratory paralysis.. acetaldehyde : The aldehyde formed from acetic acid by reduction of the carboxy group. It is the most abundant carcinogen in tobacco smoke.. aldehyde : A compound RC(=O)H, in which a carbonyl group is bonded to one hydrogen atom and to one R group.. acetyl group : A group, formally derived from acetic acid by dehydroxylation, which is fundamental to the biochemistry of all forms of life. When bound to coenzyme A, it is central to the metabolism of carbohydrates and fats. | 6.56 | 38 | 0 | aldehyde | carcinogenic agent; EC 3.5.1.4 (amidase) inhibitor; electron acceptor; Escherichia coli metabolite; human metabolite; mouse metabolite; mutagen; oxidising agent; Saccharomyces cerevisiae metabolite; teratogenic agent |
| acetone methyl ketone : A ketone of formula RC(=O)CH3 (R =/= H). | 2.67 | 3 | 0 | ketone body; methyl ketone; propanones; volatile organic compound | EC 3.5.1.4 (amidase) inhibitor; human metabolite; polar aprotic solvent |
| ammonium hydroxide azane : Saturated acyclic nitrogen hydrides having the general formula NnHn+2. | 3.51 | 2 | 0 | azane; gas molecular entity; mononuclear parent hydride | EC 3.5.1.4 (amidase) inhibitor; metabolite; mouse metabolite; neurotoxin; NMR chemical shift reference compound; nucleophilic reagent; refrigerant |
| benzoic acid Benzoic Acid: A fungistatic compound that is widely used as a food preservative. It is conjugated to GLYCINE in the liver and excreted as hippuric acid.. benzoic acid : A compound comprising a benzene ring core carrying a carboxylic acid substituent.. aromatic carboxylic acid : Any carboxylic acid in which the carboxy group is directly bonded to an aromatic ring. | 2.46 | 2 | 0 | benzoic acids | algal metabolite; antimicrobial food preservative; drug allergen; EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor; EC 3.1.1.3 (triacylglycerol lipase) inhibitor; human xenobiotic metabolite; plant metabolite |
| benzyl alcohol Benzyl Alcohol: A colorless liquid with a sharp burning taste and slight odor. It is used as a local anesthetic and to reduce pain associated with LIDOCAINE injection. Also, it is used in the manufacture of other benzyl compounds, as a pharmaceutic aid, and in perfumery and flavoring.. hydroxytoluene : Any member of the class of toluenes carrying one or more hydroxy substituents.. benzyl alcohol : An aromatic alcohol that consists of benzene bearing a single hydroxymethyl substituent.. aromatic alcohol : Any alcohol in which the alcoholic hydroxy group is attached to a carbon which is itself bonded to an aromatic ring.. aromatic primary alcohol : Any primary alcohol in which the alcoholic hydroxy group is attached to a carbon which is itself bonded to an aromatic ring. | 2.08 | 1 | 0 | benzyl alcohols | antioxidant; fragrance; metabolite; solvent |
| betaine glycine betaine : The amino acid betaine derived from glycine. | 2.01 | 1 | 0 | amino-acid betaine; glycine derivative | fundamental metabolite |
| 2,3-butylene glycol 2,3-butylene glycol: RN given refers to cpd without isomeric designation. butane-2,3-diol : A butanediol in which hydroxylation is at C-2 and C-3. | 8.5 | 99 | 0 | butanediol; glycol; secondary alcohol | |
| 1-butanol 1-Butanol: A four carbon linear hydrocarbon that has a hydroxy group at position 1.. butan-1-ol : A primary alcohol that is butane in which a hydrogen of one of the methyl groups is substituted by a hydroxy group. It it produced in small amounts in humans by the gut microbes. | 4.62 | 7 | 0 | alkyl alcohol; primary alcohol; short-chain primary fatty alcohol | human metabolite; mouse metabolite; protic solvent |
| butyric acid Butyric Acid: A four carbon acid, CH3CH2CH2COOH, with an unpleasant odor that occurs in butter and animal fat as the glycerol ester.. butyrate : A short-chain fatty acid anion that is the conjugate base of butyric acid, obtained by deprotonation of the carboxy group.. butyric acid : A straight-chain saturated fatty acid that is butane in which one of the terminal methyl groups has been oxidised to a carboxy group. | 2.69 | 3 | 0 | fatty acid 4:0; straight-chain saturated fatty acid | human urinary metabolite; Mycoplasma genitalium metabolite |
| carbon monoxide Carbon Monoxide: Carbon monoxide (CO). A poisonous colorless, odorless, tasteless gas. It combines with hemoglobin to form carboxyhemoglobin, which has no oxygen carrying capacity. The resultant oxygen deprivation causes headache, dizziness, decreased pulse and respiratory rates, unconsciousness, and death. (From Merck Index, 11th ed). carbon monoxide : A one-carbon compound in which the carbon is joined only to a single oxygen. It is a colourless, odourless, tasteless, toxic gas. | 2.1 | 1 | 0 | carbon oxide; gas molecular entity; one-carbon compound | biomarker; EC 1.9.3.1 (cytochrome c oxidase) inhibitor; human metabolite; ligand; metabolite; mitochondrial respiratory-chain inhibitor; mouse metabolite; neurotoxin; neurotransmitter; P450 inhibitor; probe; signalling molecule; vasodilator agent |
| formic acid formic acid: RN given refers to parent cpd. formic acid : The simplest carboxylic acid, containing a single carbon. Occurs naturally in various sources including the venom of bee and ant stings, and is a useful organic synthetic reagent. Principally used as a preservative and antibacterial agent in livestock feed. Induces severe metabolic acidosis and ocular injury in human subjects. | 2.71 | 3 | 0 | monocarboxylic acid | antibacterial agent; astringent; metabolite; protic solvent; solvent |
| choline [no description available] | 2.01 | 1 | 0 | cholines | allergen; Daphnia magna metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; neurotransmitter; nutrient; plant metabolite; Saccharomyces cerevisiae metabolite |
| citric acid, anhydrous Citric Acid: A key intermediate in metabolism. It is an acid compound found in citrus fruits. The salts of citric acid (citrates) can be used as anticoagulants due to their calcium chelating ability.. citric acid : A tricarboxylic acid that is propane-1,2,3-tricarboxylic acid bearing a hydroxy substituent at position 2. It is an important metabolite in the pathway of all aerobic organisms. | 4.4 | 21 | 0 | tricarboxylic acid | antimicrobial agent; chelator; food acidity regulator; fundamental metabolite |
| salicylic acid Scalp: The outer covering of the calvaria. It is composed of several layers: SKIN; subcutaneous connective tissue; the occipitofrontal muscle which includes the tendinous galea aponeurotica; loose connective tissue; and the pericranium (the PERIOSTEUM of the SKULL). | 2.17 | 1 | 0 | monohydroxybenzoic acid | algal metabolite; antifungal agent; antiinfective agent; EC 1.11.1.11 (L-ascorbate peroxidase) inhibitor; keratolytic drug; plant hormone; plant metabolite |
| hydrogen sulfide Hydrogen Sulfide: A flammable, poisonous gas with a characteristic odor of rotten eggs. It is used in the manufacture of chemicals, in metallurgy, and as an analytical reagent. (From Merck Index, 11th ed). hydrogen sulfide : A sulfur hydride consisting of a single sulfur atom bonded to two hydrogen atoms. A highly poisonous, flammable gas with a characteristic odour of rotten eggs, it is often produced by bacterial decomposition of organic matter in the absence of oxygen.. thiol : An organosulfur compound in which a thiol group, -SH, is attached to a carbon atom of any aliphatic or aromatic moiety. | 2.37 | 2 | 0 | gas molecular entity; hydracid; mononuclear parent hydride; sulfur hydride | Escherichia coli metabolite; genotoxin; metabolite; signalling molecule; toxin; vasodilator agent |
| 3-hydroxybutyric acid 3-Hydroxybutyric Acid: BUTYRIC ACID substituted in the beta or 3 position. It is one of the ketone bodies produced in the liver.. 3-hydroxybutyric acid : A straight-chain 3-hydroxy monocarboxylic acid comprising a butyric acid core with a single hydroxy substituent in the 3- position; a ketone body whose levels are raised during ketosis, used as an energy source by the brain during fasting in humans. Also used to synthesise biodegradable plastics. | 2.35 | 2 | 0 | (omega-1)-hydroxy fatty acid; 3-hydroxy monocarboxylic acid; hydroxybutyric acid | human metabolite |
| methylmalonic acid Methylmalonic Acid: A malonic acid derivative which is a vital intermediate in the metabolism of fat and protein. Abnormalities in methylmalonic acid metabolism lead to methylmalonic aciduria. This metabolic disease is attributed to a block in the enzymatic conversion of methylmalonyl CoA to succinyl CoA.. methylmalonic acid : A dicarboxylic acid that is malonic acid in which one of the methylene hydrogens is substituted by a methyl group. | 1.97 | 1 | 0 | C4-dicarboxylic acid | human metabolite |
| malic acid malic acid : A 2-hydroxydicarboxylic acid that is succinic acid in which one of the hydrogens attached to a carbon is replaced by a hydroxy group.. 2-hydroxydicarboxylic acid : Any dicarboxylic acid carrying a hydroxy group on the carbon atom at position alpha to the carboxy group. | 2.47 | 2 | 0 | 2-hydroxydicarboxylic acid; C4-dicarboxylic acid | food acidity regulator; fundamental metabolite |
| lactic acid Lactic Acid: A normal intermediate in the fermentation (oxidation, metabolism) of sugar. The concentrated form is used internally to prevent gastrointestinal fermentation. (From Stedman, 26th ed). 2-hydroxypropanoic acid : A 2-hydroxy monocarboxylic acid that is propanoic acid in which one of the alpha-hydrogens is replaced by a hydroxy group. | 4.71 | 29 | 0 | 2-hydroxy monocarboxylic acid | algal metabolite; Daphnia magna metabolite |
| diacetyl butane-2,3-dione : An alpha-diketone that is butane substituted by oxo groups at positions 2 and 3. It is a metabolite produced during the malolactic fermentation. | 7.52 | 98 | 0 | alpha-diketone | Escherichia coli metabolite; Saccharomyces cerevisiae metabolite |
| dimethyl sulfoxide Dimethyl Sulfoxide: A highly polar organic liquid, that is used widely as a chemical solvent. Because of its ability to penetrate biological membranes, it is used as a vehicle for topical application of pharmaceuticals. It is also used to protect tissue during CRYOPRESERVATION. Dimethyl sulfoxide shows a range of pharmacological activity including analgesia and anti-inflammation.. dimethyl sulfoxide : A 2-carbon sulfoxide in which the sulfur atom has two methyl substituents. | 2.05 | 1 | 0 | sulfoxide; volatile organic compound | alkylating agent; antidote; Escherichia coli metabolite; geroprotector; MRI contrast agent; non-narcotic analgesic; polar aprotic solvent; radical scavenger |
| formaldehyde paraform: polymerized formaldehyde; RN given refers to parent cpd; used in root canal therapy | 3.06 | 1 | 0 | aldehyde; one-carbon compound | allergen; carcinogenic agent; disinfectant; EC 3.5.1.4 (amidase) inhibitor; environmental contaminant; Escherichia coli metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
| glycerol Moon: The natural satellite of the planet Earth. It includes the lunar cycles or phases, the lunar month, lunar landscapes, geography, and soil. | 3.89 | 12 | 0 | alditol; triol | algal metabolite; detergent; Escherichia coli metabolite; geroprotector; human metabolite; mouse metabolite; osmolyte; Saccharomyces cerevisiae metabolite; solvent |
| glycolaldehyde [no description available] | 2.11 | 1 | 0 | glycolaldehydes | fundamental metabolite; human metabolite |
| hydrogen Hydrogen: The first chemical element in the periodic table with atomic symbol H, and atomic number 1. Protium (atomic weight 1) is by far the most common hydrogen isotope. Hydrogen also exists as the stable isotope DEUTERIUM (atomic weight 2) and the radioactive isotope TRITIUM (atomic weight 3). Hydrogen forms into a diatomic molecule at room temperature and appears as a highly flammable colorless and odorless gas.. dihydrogen : An elemental molecule consisting of two hydrogens joined by a single bond. | 2.02 | 1 | 0 | elemental hydrogen; elemental molecule; gas molecular entity | antioxidant; electron donor; food packaging gas; fuel; human metabolite |
| indole [no description available] | 2.73 | 3 | 0 | indole; polycyclic heteroarene | Escherichia coli metabolite |
| indoleacetic acid indoleacetic acid: RN given refers to unlabeled parent cpd; structure in Merck Index, 9th ed, #4841. auxin : Any of a group of compounds, both naturally occurring and synthetic, that induce cell elongation in plant stems (from Greek alphaupsilonxialphanuomega, "to grow").. indole-3-acetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens has been replaced by a 1H-indol-3-yl group. | 2.15 | 1 | 0 | indole-3-acetic acids; monocarboxylic acid | auxin; human metabolite; mouse metabolite; plant hormone; plant metabolite |
| thioctic acid Thioctic Acid: An octanoic acid bridged with two sulfurs so that it is sometimes also called a pentanoic acid in some naming schemes. It is biosynthesized by cleavage of LINOLEIC ACID and is a coenzyme of oxoglutarate dehydrogenase (KETOGLUTARATE DEHYDROGENASE COMPLEX). It is used in DIETARY SUPPLEMENTS. | 2.64 | 3 | 0 | dithiolanes; heterocyclic fatty acid; thia fatty acid | fundamental metabolite; geroprotector |
| pyruvaldehyde Pyruvaldehyde: An organic compound used often as a reagent in organic synthesis, as a flavoring agent, and in tanning. It has been demonstrated as an intermediate in the metabolism of acetone and its derivatives in isolated cell preparations, in various culture media, and in vivo in certain animals.. methylglyoxal : A 2-oxo aldehyde derived from propanal. | 2.03 | 1 | 0 | 2-oxo aldehyde; propanals | Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
| methanol Methanol: A colorless, flammable liquid used in the manufacture of FORMALDEHYDE and ACETIC ACID, in chemical synthesis, antifreeze, and as a solvent. Ingestion of methanol is toxic and may cause blindness.. primary alcohol : A primary alcohol is a compound in which a hydroxy group, -OH, is attached to a saturated carbon atom which has either three hydrogen atoms attached to it or only one other carbon atom and two hydrogen atoms attached to it.. methanol : The primary alcohol that is the simplest aliphatic alcohol, comprising a methyl and an alcohol group. | 2.85 | 4 | 0 | alkyl alcohol; one-carbon compound; primary alcohol; volatile organic compound | amphiprotic solvent; Escherichia coli metabolite; fuel; human metabolite; mouse metabolite; Mycoplasma genitalium metabolite |
| inositol Inositol: An isomer of glucose that has traditionally been considered to be a B vitamin although it has an uncertain status as a vitamin and a deficiency syndrome has not been identified in man. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1379) Inositol phospholipids are important in signal transduction.. inositol : Any cyclohexane-1,2,3,4,5,6-hexol.. 1D-chiro-inositol : Belonging to the inositol family of compounds, D-chiro-inositol (DCI) is an isomer of glucose. It is an important secondary messenger in insulin signal transduction.. muco-inositol : An inositol that is cyclohexane-1,2,3,4,5,6-hexol having a (1R,2R,3r,4R,5S,6r)-configuration. | 7.35 | 2 | 0 | cyclitol; hexol | |
| niacin Niacin: A water-soluble vitamin of the B complex occurring in various animal and plant tissues. It is required by the body for the formation of coenzymes NAD and NADP. It has PELLAGRA-curative, vasodilating, and antilipemic properties.. vitamin B3 : Any member of a group of vitamers that belong to the chemical structural class called pyridines that exhibit biological activity against vitamin B3 deficiency. Vitamin B3 deficiency causes a condition known as pellagra whose symptoms include depression, dermatitis and diarrhea. The vitamers include nicotinic acid and nicotinamide (and their ionized and salt forms).. nicotinic acid : A pyridinemonocarboxylic acid that is pyridine in which the hydrogen at position 3 is replaced by a carboxy group. | 2.55 | 2 | 0 | pyridine alkaloid; pyridinemonocarboxylic acid; vitamin B3 | antidote; antilipemic drug; EC 3.5.1.19 (nicotinamidase) inhibitor; Escherichia coli metabolite; human urinary metabolite; metabolite; mouse metabolite; plant metabolite; vasodilator agent |
| nitrates Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical. | 2.41 | 2 | 0 | monovalent inorganic anion; nitrogen oxoanion; reactive nitrogen species | |
| oxaloacetic acid Oxaloacetic Acid: A dicarboxylic acid ketone that is an important metabolic intermediate of the CITRIC ACID CYCLE. It can be converted to ASPARTIC ACID by ASPARTATE TRANSAMINASE.. oxaloacetic acid : An oxodicarboxylic acid that is succinic acid bearing a single oxo group. | 2.04 | 1 | 0 | C4-dicarboxylic acid; oxo dicarboxylic acid | geroprotector; metabolite |
| phenylacetaldehyde [no description available] | 2.13 | 1 | 0 | alpha-CH2-containing aldehyde; phenylacetaldehydes | Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
| phenethylamine phenethylamine: RN given refers to parent cpd; structure in Merck Index, 9th ed, #7016. 2-phenylethylamine : A phenylethylamine having the phenyl substituent at the 2-position. | 2.17 | 1 | 0 | alkaloid; aralkylamine; phenylethylamine | Escherichia coli metabolite; human metabolite; mouse metabolite |
| propylene glycol Propylene Glycol: A clear, colorless, viscous organic solvent and diluent used in pharmaceutical preparations.. propane-1,2-diol : The simplest member of the class of propane-1,2-diols, consisting of propane in which a hydrogen at position 1 and a hydrogen at position 2 are substituted by hydroxy groups. A colourless, viscous, hygroscopic, low-melting (-59degreeC) and high-boiling (188degreeC) liquid with low toxicity, it is used as a solvent, emulsifying agent, and antifreeze. | 3.79 | 3 | 0 | glycol; propane-1,2-diols | allergen; human xenobiotic metabolite; mouse metabolite; protic solvent |
| propionic acid propionic acid : A short-chain saturated fatty acid comprising ethane attached to the carbon of a carboxy group. | 2.42 | 2 | 0 | saturated fatty acid; short-chain fatty acid | antifungal drug |
| pteridines [no description available] | 1.96 | 1 | 0 | azaarene; mancude organic heterobicyclic parent; ortho-fused heteroarene; pteridines | |
| putrescine [no description available] | 1.97 | 1 | 0 | alkane-alpha,omega-diamine | antioxidant; fundamental metabolite |
| pyruvic acid Pyruvic Acid: An intermediate compound in the metabolism of carbohydrates, proteins, and fats. In thiamine deficiency, its oxidation is retarded and it accumulates in the tissues, especially in nervous structures. (From Stedman, 26th ed). pyruvic acid : A 2-oxo monocarboxylic acid that is the 2-keto derivative of propionic acid. It is a metabolite obtained during glycolysis. | 6.63 | 41 | 0 | 2-oxo monocarboxylic acid | cofactor; fundamental metabolite |
| sulfites Sulfites: Inorganic salts of sulfurous acid.. sulfites : Any sulfurous acid derivative that is a salt or an ester of sulfurous acid.. organosulfonate oxoanion : An organic anion obtained by deprotonation of the sufonate group(s) of any organosulfonic acid.. sulfite : A sulfur oxoanion that is the conjugate base of hydrogen sulfite (H2SO3). | 2.11 | 1 | 0 | divalent inorganic anion; sulfur oxide; sulfur oxoanion | |
| succinic acid Succinic Acid: A water-soluble, colorless crystal with an acid taste that is used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters. It is also used in foods as a sequestrant, buffer, and a neutralizing agent. (Hawley's Condensed Chemical Dictionary, 12th ed, p1099; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1851). succinic acid : An alpha,omega-dicarboxylic acid resulting from the formal oxidation of each of the terminal methyl groups of butane to the corresponding carboxy group. It is an intermediate metabolite in the citric acid cycle. | 3.14 | 5 | 0 | alpha,omega-dicarboxylic acid; C4-dicarboxylic acid | anti-ulcer drug; fundamental metabolite; micronutrient; nutraceutical; radiation protective agent |
| succinic semialdehyde succinic semialdehyde: structure | 6.93 | 1 | 0 | aldehydic acid | Escherichia coli metabolite; mouse metabolite |
| sulfuric acid sulfuric acid : A sulfur oxoacid that consists of two oxo and two hydroxy groups joined covalently to a central sulfur atom. | 2.11 | 1 | 0 | sulfur oxoacid | catalyst |
| sulfur dioxide Sulfur Dioxide: A highly toxic, colorless, nonflammable gas. It is used as a pharmaceutical aid and antioxidant. It is also an environmental air pollutant. | 2.11 | 1 | 0 | sulfur oxide | Escherichia coli metabolite; food bleaching agent; refrigerant |
| taurine [no description available] | 2.06 | 1 | 0 | amino sulfonic acid; zwitterion | antioxidant; Escherichia coli metabolite; glycine receptor agonist; human metabolite; mouse metabolite; nutrient; radical scavenger; Saccharomyces cerevisiae metabolite |
| thiamine thiamine(1+) : A primary alcohol that is 1,3-thiazol-3-ium substituted by (4-amino-2-methylpyrimidin-5-yl)methyl, methyl and 2-hydroxyethyl groups at positions 3, 4 and 5, respectively. | 4.75 | 10 | 0 | primary alcohol; vitamin B1 | Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
| trimethylamine [no description available] | 1.98 | 1 | 0 | methylamines; tertiary amine | Escherichia coli metabolite; human xenobiotic metabolite |
| urea pseudourea: clinical use; structure. isourea : A carboximidic acid that is the imidic acid tautomer of urea, H2NC(=NH)OH, and its hydrocarbyl derivatives. | 2.08 | 1 | 0 | isourea; monocarboxylic acid amide; one-carbon compound | Daphnia magna metabolite; Escherichia coli metabolite; fertilizer; flour treatment agent; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
| 1-anilino-8-naphthalenesulfonate 1-anilino-8-naphthalenesulfonate: RN given refers to parent cpd. 8-anilinonaphthalene-1-sulfonic acid : A naphthalenesulfonic acid that is naphthalene-1-sulfonic acid substituted by a phenylamino group at position 8. | 2.11 | 1 | 0 | aminonaphthalene; naphthalenesulfonic acid | fluorescent probe |
| benzothiazide benzothiazide: structure. benzthiazide : 7-Sulfamoyl-1,2,4-benzothiadiazine 1,1-dioxide in which the hydrogen at position 6 is substituted by chlorine and that at position 3 is substituted by a benzylsulfanylmethyl group. A diuretic, it is used to treat hypertension and edema. | 2.03 | 1 | 0 | benzothiadiazine; sulfonamide | antihypertensive agent; diuretic |
| 4-cresol 4-cresol: RN given refers to parent cpd. p-cresol : A cresol that consists of toluene substituted by a hydroxy group at position 4. It is a metabolite of aromatic amino acid metabolism produced by intestinal microflora in humans and animals. | 2.41 | 2 | 0 | cresol | Escherichia coli metabolite; human metabolite; uremic toxin |
| carbonyl cyanide p-trifluoromethoxyphenylhydrazone Carbonyl Cyanide p-Trifluoromethoxyphenylhydrazone: A proton ionophore that is commonly used as an uncoupling agent in biochemical studies.. carbonyl cyanide p-trifluoromethoxyphenylhydrazone : A hydrazone that is hydrazonomalononitrile in which one of the hydrazine hydrogens is substituted by a p-trifluoromethoxyphenyl group. | 1.97 | 1 | 0 | aromatic ether; hydrazone; nitrile; organofluorine compound | ATP synthase inhibitor; geroprotector; ionophore |
| vitamin k 3 Vitamin K 3: A synthetic naphthoquinone without the isoprenoid side chain and biological activity, but can be converted to active vitamin K2, menaquinone, after alkylation in vivo. | 2.03 | 1 | 0 | 1,4-naphthoquinones; vitamin K | angiogenesis inhibitor; antineoplastic agent; EC 3.4.22.69 (SARS coronavirus main proteinase) inhibitor; human urinary metabolite; nutraceutical |
| metronidazole Metronidazole: A nitroimidazole used to treat AMEBIASIS; VAGINITIS; TRICHOMONAS INFECTIONS; GIARDIASIS; ANAEROBIC BACTERIA; and TREPONEMAL INFECTIONS.. metronidazole : A member of the class of imidazoles substituted at C-1, -2 and -5 with 2-hydroxyethyl, nitro and methyl groups respectively. It has activity against anaerobic bacteria and protozoa, and has a radiosensitising effect on hypoxic tumour cells. It may be given by mouth in tablets, or as the benzoate in an oral suspension. The hydrochloride salt can be used in intravenous infusions. Metronidazole is a prodrug and is selective for anaerobic bacteria due to their ability to intracellularly reduce the nitro group of metronidazole to give nitroso-containing intermediates. These can covalently bind to DNA, disrupting its helical structure, inducing DNA strand breaks and inhibiting bacterial nucleic acid synthesis, ultimately resulting in bacterial cell death. | 2.38 | 2 | 0 | C-nitro compound; imidazoles; primary alcohol | antiamoebic agent; antibacterial drug; antimicrobial agent; antiparasitic agent; antitrichomonal drug; environmental contaminant; prodrug; radiosensitizing agent; xenobiotic |
| 4-dichlorobenzene dichlorobenzene : Any member of the class of chlorobenzenes carrying two chloro groups at unspecified positions.. 1,4-dichlorobenzene : A dichlorobenzene carrying chloro groups at positions 1 and 4. | 2.07 | 1 | 0 | dichlorobenzene | insecticide |
| sulfamethoxazole Sulfamethoxazole: A bacteriostatic antibacterial agent that interferes with folic acid synthesis in susceptible bacteria. Its broad spectrum of activity has been limited by the development of resistance. (From Martindale, The Extra Pharmacopoeia, 30th ed, p208). sulfamethoxazole : An isoxazole (1,2-oxazole) compound having a methyl substituent at the 5-position and a 4-aminobenzenesulfonamido group at the 3-position. | 2.02 | 1 | 0 | isoxazoles; substituted aniline; sulfonamide antibiotic; sulfonamide | antibacterial agent; antiinfective agent; antimicrobial agent; drug allergen; EC 1.1.1.153 [sepiapterin reductase (L-erythro-7,8-dihydrobiopterin forming)] inhibitor; EC 2.5.1.15 (dihydropteroate synthase) inhibitor; environmental contaminant; epitope; P450 inhibitor; xenobiotic |
| tyramine [no description available] | 2.34 | 2 | 0 | monoamine molecular messenger; primary amino compound; tyramines | EC 3.1.1.8 (cholinesterase) inhibitor; Escherichia coli metabolite; human metabolite; mouse metabolite; neurotransmitter |
| sorbitol D-glucitol : The D-enantiomer of glucitol (also known as D-sorbitol). | 2.65 | 3 | 0 | glucitol | cathartic; Escherichia coli metabolite; food humectant; human metabolite; laxative; metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite; sweetening agent |
| alanine Alanine: A non-essential amino acid that occurs in high levels in its free state in plasma. It is produced from pyruvate by transamination. It is involved in sugar and acid metabolism, increases IMMUNITY, and provides energy for muscle tissue, BRAIN, and the CENTRAL NERVOUS SYSTEM.. alanine : An alpha-amino acid that consists of propionic acid bearing an amino substituent at position 2. | 2.42 | 2 | 0 | alanine zwitterion; alanine; L-alpha-amino acid; proteinogenic amino acid; pyruvate family amino acid | EC 4.3.1.15 (diaminopropionate ammonia-lyase) inhibitor; fundamental metabolite |
| serine Serine: A non-essential amino acid occurring in natural form as the L-isomer. It is synthesized from GLYCINE or THREONINE. It is involved in the biosynthesis of PURINES; PYRIMIDINES; and other amino acids.. serine : An alpha-amino acid that is alanine substituted at position 3 by a hydroxy group. | 2.25 | 1 | 0 | L-alpha-amino acid; proteinogenic amino acid; serine family amino acid; serine zwitterion; serine | algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
| aspartic acid Aspartic Acid: One of the non-essential amino acids commonly occurring in the L-form. It is found in animals and plants, especially in sugar cane and sugar beets. It may be a neurotransmitter.. aspartic acid : An alpha-amino acid that consists of succinic acid bearing a single alpha-amino substituent. L-aspartic acid : The L-enantiomer of aspartic acid. | 2.71 | 3 | 0 | aspartate family amino acid; aspartic acid; L-alpha-amino acid; proteinogenic amino acid | Escherichia coli metabolite; mouse metabolite; neurotransmitter |
| glutamine Glutamine: A non-essential amino acid present abundantly throughout the body and is involved in many metabolic processes. It is synthesized from GLUTAMIC ACID and AMMONIA. It is the principal carrier of NITROGEN in the body and is an important energy source for many cells.. L-glutamine : An optically active form of glutamine having L-configuration.. glutamine : An alpha-amino acid that consists of butyric acid bearing an amino substituent at position 2 and a carbamoyl substituent at position 4. | 2 | 1 | 0 | amino acid zwitterion; glutamine family amino acid; glutamine; L-alpha-amino acid; polar amino acid zwitterion; proteinogenic amino acid | EC 1.14.13.39 (nitric oxide synthase) inhibitor; Escherichia coli metabolite; human metabolite; metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite |
| lysine Lysine: An essential amino acid. It is often added to animal feed.. lysine : A diamino acid that is caproic (hexanoic) acid bearing two amino substituents at positions 2 and 6.. L-lysine : An L-alpha-amino acid; the L-isomer of lysine. | 1.95 | 1 | 0 | aspartate family amino acid; L-alpha-amino acid zwitterion; L-alpha-amino acid; lysine; organic molecular entity; proteinogenic amino acid | algal metabolite; anticonvulsant; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite |
| sucrose Saccharum: A plant genus of the family POACEAE widely cultivated in the tropics for the sweet cane that is processed into sugar. | 2.4 | 2 | 0 | glycosyl glycoside | algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; osmolyte; Saccharomyces cerevisiae metabolite; sweetening agent |
| uridine [no description available] | 7.17 | 1 | 0 | uridines | drug metabolite; fundamental metabolite; human metabolite |
| edetic acid Edetic Acid: A chelating agent that sequesters a variety of polyvalent cations such as CALCIUM. It is used in pharmaceutical manufacturing and as a food additive. | 2.1 | 1 | 0 | ethylenediamine derivative; polyamino carboxylic acid; tetracarboxylic acid | anticoagulant; antidote; chelator; copper chelator; geroprotector |
| phenylethyl alcohol Phenylethyl Alcohol: An antimicrobial, antiseptic, and disinfectant that is used also as an aromatic essence and preservative in pharmaceutics and perfumery.. 2-phenylethanol : A primary alcohol that is ethanol substituted by a phenyl group at position 2. | 3.01 | 4 | 0 | benzenes; primary alcohol | Aspergillus metabolite; fragrance; plant growth retardant; plant metabolite; Saccharomyces cerevisiae metabolite |
| leucine Leucine: An essential branched-chain amino acid important for hemoglobin formation.. leucine : A branched-chain amino acid that consists of glycine in which one of the hydrogens attached to the alpha-carbon is substituted by an isobutyl group. | 7.64 | 3 | 0 | amino acid zwitterion; L-alpha-amino acid; leucine; proteinogenic amino acid; pyruvate family amino acid | algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite |
| methacholine chloride Methacholine Chloride: A quaternary ammonium parasympathomimetic agent with the muscarinic actions of ACETYLCHOLINE. It is hydrolyzed by ACETYLCHOLINESTERASE at a considerably slower rate than ACETYLCHOLINE and is more resistant to hydrolysis by nonspecific CHOLINESTERASES so that its actions are more prolonged. It is used as a parasympathomimetic bronchoconstrictor agent and as a diagnostic aid for bronchial asthma. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1116) | 2.08 | 1 | 0 | quaternary ammonium salt | |
| aniline [no description available] | 1.98 | 1 | 0 | anilines; primary arylamine | |
| lactose Lactose: A disaccharide of GLUCOSE and GALACTOSE in human and cow milk. It is used in pharmacy for tablets, in medicine as a nutrient, and in industry.. lactose : A glycosylglucose disaccharide, found most notably in milk, that consists of D-galactose and D-glucose fragments bonded through a beta-1->4 glycosidic linkage. The glucose fragment can be in either the alpha- or beta-pyranose form, whereas the galactose fragment can only have the beta-pyranose form.. beta-lactose : The beta-anomer of lactose. | 3.69 | 10 | 0 | lactose | |
| n-hexanal [no description available] | 2.07 | 1 | 0 | medium-chain fatty aldehyde; n-alkanal; saturated fatty aldehyde | human urinary metabolite |
| sodium citrate, anhydrous Sodium Citrate: Sodium salts of citric acid that are used as buffers and food preservatives. They are used medically as anticoagulants in stored blood, and for urine alkalization in the prevention of KIDNEY STONES.. sodium citrate : The trisodium salt of citric acid. | 2.37 | 2 | 0 | organic sodium salt | anticoagulant; flavouring agent |
| ampicillin Ampicillin: Semi-synthetic derivative of penicillin that functions as an orally active broad-spectrum antibiotic.. ampicillin : A penicillin in which the substituent at position 6 of the penam ring is a 2-amino-2-phenylacetamido group. | 2.42 | 2 | 0 | beta-lactam antibiotic; penicillin allergen; penicillin | antibacterial drug |
| mannitol [no description available] | 4.35 | 6 | 0 | mannitol | allergen; antiglaucoma drug; compatible osmolytes; Escherichia coli metabolite; food anticaking agent; food bulking agent; food humectant; food stabiliser; food thickening agent; hapten; metabolite; osmotic diuretic; sweetening agent |
| asparagine Asparagine: A non-essential amino acid that is involved in the metabolic control of cell functions in nerve and brain tissue. It is biosynthesized from ASPARTIC ACID and AMMONIA by asparagine synthetase. (From Concise Encyclopedia Biochemistry and Molecular Biology, 3rd ed). asparagine : An alpha-amino acid in which one of the hydrogens attached to the alpha-carbon of glycine is substituted by a 2-amino-2-oxoethyl group. | 2.25 | 1 | 0 | amino acid zwitterion; asparagine; aspartate family amino acid; L-alpha-amino acid; proteinogenic amino acid | Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite |
| n-pentanol n-pentanol: RN given refers to parent cpd. pentan-1-ol : A short-chain primary fatty alcohol that is pentane in which a hydrogen of one of the methyl groups is substituted by a hydroxy group. It has been isolated from Melicope ptelefolia. | 4.73 | 9 | 0 | pentanol; short-chain primary fatty alcohol | human metabolite; plant metabolite |
| valine Valine: A branched-chain essential amino acid that has stimulant activity. It promotes muscle growth and tissue repair. It is a precursor in the penicillin biosynthetic pathway.. valine : A branched-chain amino acid that consists of glycine in which one of the hydrogens attached to the alpha-carbon is substituted by an isopropyl group.. L-valine : The L-enantiomer of valine. | 3.22 | 6 | 0 | L-alpha-amino acid zwitterion; L-alpha-amino acid; proteinogenic amino acid; pyruvate family amino acid; valine | algal metabolite; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite |
| isoleucine Isoleucine: An essential branched-chain aliphatic amino acid found in many proteins. It is an isomer of LEUCINE. It is important in hemoglobin synthesis and regulation of blood sugar and energy levels.. isoleucine : A 2-amino-3-methylpentanoic acid having either (2R,3R)- or (2S,3S)-configuration.. L-isoleucine : The L-enantiomer of isoleucine. | 7.87 | 4 | 0 | aspartate family amino acid; isoleucine; L-alpha-amino acid zwitterion; L-alpha-amino acid; proteinogenic amino acid | algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite |
| arginine Arginine: An essential amino acid that is physiologically active in the L-form.. arginine : An alpha-amino acid that is glycine in which the alpha-is substituted by a 3-guanidinopropyl group. | 2.36 | 2 | 0 | arginine; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid | biomarker; Escherichia coli metabolite; micronutrient; mouse metabolite; nutraceutical |
| linalool linalool: RN given refers to parent cpd without isomeric designation; structure. linalool : A monoterpenoid that is octa-1,6-diene substituted by methyl groups at positions 3 and 7 and a hydroxy group at position 3. It has been isolated from plants like Ocimum canum. | 2.08 | 1 | 0 | monoterpenoid; tertiary alcohol | antimicrobial agent; fragrance; plant metabolite; volatile oil component |
| isoprene isoprene: used in manufacture of ''synthetic'' rubber, butyl rubber; copolymer in production of elastomers; structure. isoprene : A hemiterpene with the formula CH2=C(CH3)CH=CH2; the monomer of natural rubber and a common structure motif to the isoprenoids, a large class of other naturally occurring compounds. | 2.44 | 2 | 0 | alkadiene; hemiterpene; volatile organic compound | plant metabolite |
| isobutyl alcohol isobutyl alcohol: RN given refers to parent cpd | 2.21 | 1 | 0 | alkyl alcohol; primary alcohol | Saccharomyces cerevisiae metabolite |
| 2-butanol 2-butanol: RN given is for parent cpd without isomeric designation. butan-2-ol : A secondary alcohol that is butane substituted by a hydroxy group at position 2. | 2.17 | 1 | 0 | secondary alcohol | |
| methylethyl ketone methylethyl ketone: solvent; colorless synthetic resins, smokeless powders; may be irritating to eyes, mucous membranes; may be toxic in high concentrations; structure. butanone : Any ketone that is butane substituted by an oxo group at unspecified position.. butan-2-one : A dialkyl ketone that is a four-carbon ketone carrying a single keto- group at position C-2. | 3.08 | 5 | 0 | butanone; dialkyl ketone; methyl ketone; volatile organic compound | bacterial metabolite; polar aprotic solvent |
| xylitol xylooligosaccharide: structure in first source. pentitol : An alditol obtained by reduction of any pentose.. xylooligosaccharide : An oligosaccharide comprised of xylose residues. | 2.4 | 2 | 0 | ||
| 2-methylbutanal 2-methylbutanal: structure in first source. 2-methylbutanal : A methylbutanal in which the methyl substituent is at position 2. | 2.07 | 1 | 0 | 2-methyl-branched fatty aldehyde; methylbutanal | plant metabolite; Saccharomyces cerevisiae metabolite; volatile oil component |
| 4-butyrolactone 4-Butyrolactone: One of the FURANS with a carbonyl thereby forming a cyclic lactone. It is an endogenous compound made from gamma-aminobutyrate and is the precursor of gamma-hydroxybutyrate. It is also used as a pharmacological agent and solvent.. tetrahydrofuranone : Any oxolane having an oxo- substituent at any position on the tetrahydrofuran ring.. gamma-butyrolactone : A butan-4-olide that is tetrahydrofuran substituted by an oxo group at position 2. | 2.06 | 1 | 0 | butan-4-olide | metabolite; neurotoxin |
| furaldehyde Furaldehyde: A heterocyclic compound consisting of a furan where the hydrogen at position 2 is substituted by a formyl group.. furfural : An aldehyde that is furan with the hydrogen at position 2 substituted by a formyl group. | 2.44 | 2 | 0 | aldehyde; furans | Maillard reaction product; metabolite |
| trehalose alpha,alpha-trehalose : A trehalose in which both glucose residues have alpha-configuration at the anomeric carbon. | 6.99 | 1 | 0 | trehalose | Escherichia coli metabolite; geroprotector; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
| gamma-terpinene gamma-terpinene: RN given refers to gamma-terpinene; structure. gamma-terpinene : One of three isomeric monoterpenes differing in the positions of their two double bonds (alpha- and beta-terpinene being the others). In gamma-terpinene the double bonds are at the 1- and 4-positions of the p-menthane skeleton. | 2.07 | 1 | 0 | cyclohexadiene; monoterpene | antioxidant; human xenobiotic metabolite; plant metabolite; volatile oil component |
| 4-cymene 4-cymene: structure. p-cymene : A monoterpene that is toluene substituted by an isopropyl group at position 4. | 2.15 | 1 | 0 | monoterpene; toluenes | human urinary metabolite; plant metabolite; volatile oil component |
| ethylbenzene [no description available] | 2.15 | 1 | 0 | alkylbenzene | |
| styrene Styrene: A colorless, toxic liquid with a strong aromatic odor. It is used to make rubbers, polymers and copolymers, and polystyrene plastics.. styrene : A vinylarene that is benzene carrying a vinyl group. It has been isolated from the benzoin resin produced by Styrax species. | 2.05 | 1 | 0 | styrenes; vinylarene; volatile organic compound | mouse metabolite; mutagen; plant metabolite |
| 2-phenylethyl acetate phenethyl acetate : The acetate ester of 2-phenylethanol. | 2.05 | 1 | 0 | acetate ester | metabolite; Saccharomyces cerevisiae metabolite |
| butane butane : A straight chain alkane composed of 4 carbon atoms. | 2.33 | 2 | 0 | alkane; gas molecular entity | food propellant; refrigerant |
| 1,3-butylene glycol 1,3-butylene glycol: RN given refers to cpd without isomeric designation. butane-1,3-diol : A butanediol compound having two hydroxy groups in the 1- and 3-positions. | 2.84 | 4 | 0 | butanediol; glycol | |
| pentane Pentanes: Five-carbon saturated hydrocarbon group of the methane series. Include isomers and derivatives.. pentane : A straight chain alkane consisting of 5 carbon atoms. | 2.44 | 2 | 0 | alkane; volatile organic compound | non-polar solvent; refrigerant |
| pyrroles 1H-pyrrole : A tautomer of pyrrole that has the double bonds at positions 2 and 4.. pyrrole : A five-membered monocyclic heteroarene comprising one NH and four CH units which forms the parent compound of the pyrrole group of compounds. Its five-membered ring structure has three tautomers. A 'closed class'.. azole : Any monocyclic heteroarene consisting of a five-membered ring containing nitrogen. Azoles can also contain one or more other non-carbon atoms, such as nitrogen, sulfur or oxygen. | 2.4 | 2 | 0 | pyrrole; secondary amine | |
| isobutyl acetate isobutyl acetate : The acetate ester of isobutanol. | 2.17 | 1 | 0 | acetate ester | Saccharomyces cerevisiae metabolite |
| 1,4-butanediol butane-1,4-diol : A butanediol that is butane in which one hydrogen of each of the methyl groups is substituted by a hydroxy group. A colourless, water-miscible, viscous liquid at room temperature (m.p. 16degreeC) with a high boiling point (230degreeC), it is mainly used for the production of other organic chemicals, particularly the solvent oxolane (also known as tetrahydrofuran or THF). | 2.25 | 1 | 0 | butanediol; glycol | neurotoxin; prodrug; protic solvent |
| 1-hexanol 1-hexanol: RN given refers to parent cpd. hexanol : A fatty alcohol consisting of a hydroxy function at any position of an unbranched saturated chain of six carbon atoms.. hexan-1-ol : A primary alcohol that is hexane substituted by a hydroxy group at position 1. | 2.52 | 2 | 0 | hexanol; primary alcohol | alarm pheromone; antibacterial agent; fragrance; plant metabolite |
| heptanol Heptanol: A colorless liquid with a fragrant odor. It is used as an intermediate, solvent and in cosmetics.. heptanol : A fatty alcohol consisting of a hydroxy function at any position of an unbranched saturated chain of seven carbon atoms.. heptan-1-ol : A primary alcohol that is heptane substituted by a hydroxy group at position 1. It has been isolated from Capillipedium parviflorum. | 2.02 | 1 | 0 | heptanol; primary alcohol | flavouring agent; fragrance; gap junctional intercellular communication inhibitor; plant metabolite |
| decanaldehyde decanal : A saturated fatty aldehyde formally arising from reduction of the carboxy group of capric acid (decanoic acid). | 2.15 | 1 | 0 | medium-chain fatty aldehyde; n-alkanal; saturated fatty aldehyde | antifungal agent; fragrance; plant metabolite |
| benzoin [no description available] | 1.95 | 1 | 0 | benzoins; secondary alpha-hydroxy ketone | EC 3.1.1.1 (carboxylesterase) inhibitor |
| 2-methylbutanol 2-methylbutanol: fragrance; structure in first source. 2-methylbutan-1-ol : A primary alcohol that is isopentane substituted by a hydroxy group at position 1. | 2.07 | 1 | 0 | alkyl alcohol; primary alcohol | Saccharomyces cerevisiae metabolite |
| nitrilotriacetic acid Nitrilotriacetic Acid: A derivative of acetic acid, N(CH2COOH)3. It is a complexing (sequestering) agent that forms stable complexes with Zn2+. (From Miall's Dictionary of Chemistry, 5th ed.) | 2.04 | 1 | 0 | NTA; tricarboxylic acid | carcinogenic agent; nephrotoxic agent |
| ethyl acetate ethyl acetate : The acetate ester formed between acetic acid and ethanol. | 3.24 | 5 | 0 | acetate ester; ethyl ester; volatile organic compound | EC 3.4.19.3 (pyroglutamyl-peptidase I) inhibitor; metabolite; polar aprotic solvent; Saccharomyces cerevisiae metabolite |
| potassium cyanide [no description available] | 1.96 | 1 | 0 | cyanide salt; one-carbon compound; potassium salt | EC 1.15.1.1 (superoxide dismutase) inhibitor; EC 1.9.3.1 (cytochrome c oxidase) inhibitor; neurotoxin |
| thiamine pyrophosphate Thiamine Pyrophosphate: The coenzyme form of Vitamin B1 present in many animal tissues. It is a required intermediate in the PYRUVATE DEHYDROGENASE COMPLEX and the KETOGLUTARATE DEHYDROGENASE COMPLEX.. thiamine(1+) diphosphate chloride : An organic chloride salt of thiamine(1+) diphosphate. | 9.14 | 5 | 0 | organic chloride salt; vitamin B1 | |
| pyrazines Pyrazines: A heterocyclic aromatic organic compound with the chemical formula C4H4N2.. pyrazine : A diazine that is benzene in which the carbon atoms at positions 1 and 4 have been replaced by nitrogen atoms. | 3.72 | 9 | 0 | diazine; pyrazines | Daphnia magna metabolite |
| methylguanidine Methylguanidine: A product of putrefaction. Poisonous.. methylguanidine : A guanidine in which one of the amino hydrogens of guanidine itself is substituted by a methyl group. | 1.97 | 1 | 0 | guanidines | EC 1.14.13.39 (nitric oxide synthase) inhibitor; metabolite; uremic toxin |
| fusarium Fusarium: A mitosporic Hypocreales fungal genus, various species of which are important parasitic pathogens of plants and a variety of vertebrates. Teleomorphs include GIBBERELLA. | 2.17 | 1 | 0 | ||
| methyl red methyl red: RN given refers to parent cpd; structure. methyl red : An azo dye consisting of benzoic acid substituted at position 2 by a 4-[(dimethylamino)phenyl]diazenyl group. | 1.96 | 1 | 0 | ||
| dipicolinic acid dipicolinic acid : A pyridinedicarboxylic acid carrying two carboxy groups at positions 2 and 6. | 7.11 | 1 | 0 | pyridinedicarboxylic acid | bacterial metabolite |
| 1,3-propanediol propane-1,3-diol : The simplest member of the class of propane-1,3-diols, consisting of propane in which one hydrogen from each methyl group is substituted by a hydroxy group. A colourless, viscous, water-miscible liquid with a high (210degreeC) boiling point, it is used in the synthesis of certain polymers and as a solvent and antifreeze. | 1.99 | 1 | 0 | propane-1,3-diols | metabolite; protic solvent |
| methionol methionol: a aroma-active compound. 3-methylthiopropanol : An alkyl sulfide that is propan-1-ol substituted by a methylsulfanyl group at position 3. It is a volatile compound found in wines and produced during fermentation. | 2.57 | 2 | 0 | aliphatic sulfide; methyl sulfide | Saccharomyces cerevisiae metabolite |
| gluconic acid gluconic acid: zinc gluconate has anti-inflammatory activity; RN given refers to (D)-isomer; all RRs refers to (D)-isomer unless otherwise noted. ketogluconic acid : A gluconic acid that contains a ketonic carbonyl group.. D-gluconic acid : A gluconic acid having D-configuration. | 2.02 | 1 | 0 | gluconic acid | chelator; Penicillium metabolite |
| copper gluconate Gluconates: Derivatives of gluconic acid (the structural formula HOCH2(CHOH)4COOH), including its salts and esters. | 2.46 | 2 | 0 | organic molecular entity | |
| isovalerylaldehyde isovalerylaldehyde: structure in Merck Index, 9th ed, #5093. 3-methylbutanal : A methylbutanal that is butanal substituted by a methyl group at position 3. It occurs as a volatile constituent in olives. | 2.76 | 3 | 0 | methylbutanal | flavouring agent; plant metabolite; Saccharomyces cerevisiae metabolite; volatile oil component |
| 2,3-pentanedione pentane-2,3-dione : An alpha-diketone that is pentane substituted at the 2- and 3-positions by oxo groups. | 5.4 | 10 | 0 | alpha-diketone; methyl ketone | flavouring agent |
| dimethyl disulfide [no description available] | 3.68 | 2 | 0 | organic disulfide | xenobiotic metabolite |
| tetramethylpyrazine tetramethylpyrazine: found in Ligusticum chuanxiong. tetramethylpyrazine : A member of the class of pyrazines that is pyrazine in which all four hydrogens have been replaced by methyl groups. An alkaloid extracted from Chuanxiong (Ligusticum wallichii). | 3.61 | 8 | 0 | alkaloid; pyrazines | antineoplastic agent; apoptosis inhibitor; bacterial metabolite; neuroprotective agent; platelet aggregation inhibitor; vasodilator agent |
| sodium hydroxide Sodium Hydroxide: A highly caustic substance that is used to neutralize acids and make sodium salts. (From Merck Index, 11th ed) | 2.07 | 1 | 0 | alkali metal hydroxide | |
| decane decane : A straight-chain alkane with 10 carbon atoms. | 2.05 | 1 | 0 | alkane | |
| hexadecyldimethylamine hexadecyldimethylamine: has antifungal activity; isolated from Arthrobacter agilis; structure in first source | 3.27 | 1 | 0 | ||
| sabinene sabinene: RN given refers to cpd without isomeric designation. sabinene : A thujene that is a bicyclic monoterpene isolated from the essential oils of various plant species. | 1.95 | 1 | 0 | thujene | plant metabolite |
| 1-octen-3-ol 1-octen-3-ol: main flavor component of mushrooms; RN given refers to cpd without isomeric designation; bait for insect vectors (tsetse, sandflies, mosquitoes). oct-1-en-3-ol : An alkenyl alcohol with a structure based on a C8 unbranched chain with the hydroxy group at C-2 and unsaturation at C-1-C-2. It is a major volatile compound present in many mushrooms and fungi. | 1.98 | 1 | 0 | alkenyl alcohol; medium-chain fatty alcohol | antimicrobial agent; fungal metabolite; insect attractant; volatile oil component |
| dithiothreitol 1,4-dimercaptobutane-2,3-diol : A glycol that is butane-2,3-diol in which a hydrogen from each of the methyl groups is replaced by a thiol group.. 1,4-dithiothreitol : The threo-diastereomer of 1,4-dimercaptobutane-2,3-diol. | 1.95 | 1 | 0 | 1,4-dimercaptobutane-2,3-diol; butanediols; dithiol; glycol; thiol | chelator; human metabolite; reducing agent |
| dimethyl trisulfide [no description available] | 1.98 | 1 | 0 | organic trisulfide | |
| 2-pentylfuran 2-pentylfuran: structure in first source. 2-pentylfuran : A member of the class of furans that is furan in which the hydrogen at position 2 is replaced by a pentyl group. It is found in many heat-processed foods and drinks. | 3.27 | 1 | 0 | furans | Aspergillus metabolite; bacterial metabolite; flavouring agent; human urinary metabolite; insect repellent; plant growth stimulator; volatile oil component |
| limonene Limonene: A naturally-occurring class of MONOTERPENES which occur as a clear colorless liquid at room temperature. Limonene is the major component in the oil of oranges which has many uses, including as flavor and fragrance. It is recognized as safe in food by the Food and Drug Administration (FDA).. limonene : A monoterpene that is cyclohex-1-ene substituted by a methyl group at position 1 and a prop-1-en-2-yl group at position 4 respectively. | 2.11 | 1 | 0 | cycloalkene; p-menthadiene | human metabolite |
| dimethylpropiothetin dimethylpropiothetin: has antineoplastic activity; RN given refers to hydroxide inner salt. S,S-dimethyl-beta-propiothetin : A sulfonium betaine obtained by deprotonation of the carboxy group of 3-dimethylsulfoniopropionic acid. | 2.01 | 1 | 0 | sulfonium betaine | marine metabolite; osmolyte |
| lanthanum [no description available] | 2.03 | 1 | 0 | f-block element atom; lanthanoid atom; scandium group element atom | |
| cadmium Cadmium: An element with atomic symbol Cd, atomic number 48, and atomic weight 112.41. It is a metal and ingestion will lead to CADMIUM POISONING.. elemental cadmium : An element in the zinc group of the periodic table with atomic number 48, atomic mass 112, M.P. 321degreeC, and B.P. 765degreeC). An odourless, tasteless, and highly poisonous soft, ductile, lustrous metal with electropositive properties. It has eight stable isotopes: (106)Cd, (108)Cd,(110)Cd, (111)Cd, (112)Cd, (113)Cd, (114)Cd and (116)Cd, with (112)Cd and (114)Cd being the most common. | 2.39 | 2 | 0 | cadmium molecular entity; zinc group element atom | |
| acetylglucosamine Acetylglucosamine: The N-acetyl derivative of glucosamine.. N-acetyl-beta-D-glucosamine : An N-acetyl-D-glucosamine having beta-configuration at the anomeric centre. | 2.8 | 3 | 0 | N-acetyl-D-glucosamine | epitope |
| galactose aldohexose : A hexose with a (potential) aldehyde group at one end. | 1.93 | 1 | 0 | ||
| ammonium sulfide [no description available] | 2 | 1 | 0 | ||
| ferric nitrilotriacetate ferric nitrilotriacetate: induces diabetes in animals (iron loading) | 2.04 | 1 | 0 | iron chelate | carcinogenic agent; mutagen |
| phenyl acetate phenyl acetate: The ester formed between phenol and acetic acid. Don't confuse with phenylacetic acid derivatives listed under PHENYLACETATES.. phenyl acetate : An acetate ester obtained by the formal condensation of phenol with acetic acid. | 6.04 | 38 | 0 | benzenes; phenyl acetates | |
| isopentyl alcohol isopentyl alcohol: RN given refers to unlabeled parent cpd. isoamylol : An primary alcohol that is butan-1-ol in which a hydrogen at position 3 has been replaced by a methyl group. | 3.32 | 6 | 0 | alkyl alcohol; primary alcohol; volatile organic compound | antifungal agent; Saccharomyces cerevisiae metabolite; xenobiotic metabolite |
| alkenes [no description available] | 2.36 | 2 | 0 | ||
| glutamic acid Glutamic Acid: A non-essential amino acid naturally occurring in the L-form. Glutamic acid is the most common excitatory neurotransmitter in the CENTRAL NERVOUS SYSTEM.. glutamic acid : An alpha-amino acid that is glutaric acid bearing a single amino substituent at position 2. | 2 | 1 | 0 | glutamic acid; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid | Escherichia coli metabolite; ferroptosis inducer; micronutrient; mouse metabolite; neurotransmitter; nutraceutical |
| imazapyr, (+-)-isomer imazapyr: RN given refers to parent cpd without isomeric designation. imazapyr : A racemate comprising equimolar amounts of (R)- and (S)-imazapyr. An inhibitor of acetohydroxyacid synthase, it is used (generally as the isopropylamine salt, known as imazapyr-isopropylammonium) as a herbicide, particularly for the control of perennial grasses, broad-leaved weeds, woody plants, brambles, etc., on non-crop land. It is not approved for use within the European Union.. 2-(4-isopropyl-4-methyl-5-oxo-4,5-dihydro-1H-imidazol-2-yl)nicotinic acid : A pyridinemonocarboxylic acid that is nicotinic acid which is substituted at position 2 by a 4,5-dihydro-imidazol-2-yl group, which in turn is substituted at positions 4, 4, and 5 by isopropyl, ethyl, and oxo groups, respectively. | 2.25 | 1 | 0 | imidazolines; imidazolone; pyridinemonocarboxylic acid; pyridines | |
| potassium phosphate potassium phosphate: used in dental materials and to treat hypophosphatemia; RN given refers to cpd with unspecified MF. tripotassium phosphate : An inorganic potassium salt that is the tripotassium salt of phosphoric acid. | 2.08 | 1 | 0 | inorganic phosphate salt; inorganic potassium salt | |
| 4,5-dimethyl-3-hydroxy-2(5h)-furanone [no description available] | 2.11 | 1 | 0 | butenolide | metabolite |
| trazodone hydrochloride Triticum: A plant genus of the family POACEAE that is the source of EDIBLE GRAIN. A hybrid with rye (SECALE CEREALE) is called TRITICALE. The seed is ground into FLOUR and used to make BREAD, and is the source of WHEAT GERM AGGLUTININS.. trazodone hydrochloride : A hydrochloride salt prepared from equimolar amounts of trazodone and hydrogen chloride. | 3.11 | 4 | 0 | hydrochloride | adrenergic antagonist; antidepressant; H1-receptor antagonist; sedative; serotonin uptake inhibitor |
| lenampicillin lenampicillin: structure given in first source. lenampicillin : A penicillanic acid ester that is the (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl ester of ampicillin. It is a prodrug of ampicillin. | 1.96 | 1 | 0 | ketene acetal; penicillanic acid ester | prodrug |
| triazoles Triazoles: Heterocyclic compounds containing a five-membered ring with two carbon atoms and three nitrogen atoms with the molecular formula C2H3N3.. triazoles : An azole in which the five-membered heterocyclic aromatic skeleton contains three N atoms and two C atoms. | 1.95 | 1 | 0 | 1,2,3-triazole | |
| alpha-acetolactate alpha-acetolactate: RN given refers to cpd without isomeric designation | 9.97 | 12 | 0 | ||
| pyruvamide [no description available] | 1.98 | 1 | 0 | ||
| coenzyme a [no description available] | 3.19 | 6 | 0 | adenosine 3',5'-bisphosphate | coenzyme; Escherichia coli metabolite; mouse metabolite |
| nicotine (S)-nicotine : A 3-(1-methylpyrrolidin-2-yl)pyridine in which the chiral centre has S-configuration. The naturally occurring and most active enantiomer of nicotine, isolated from Nicotiana tabacum. | 2.21 | 1 | 0 | 3-(1-methylpyrrolidin-2-yl)pyridine | anxiolytic drug; biomarker; immunomodulator; mitogen; neurotoxin; nicotinic acetylcholine receptor agonist; peripheral nervous system drug; phytogenic insecticide; plant metabolite; psychotropic drug; teratogenic agent; xenobiotic |
| methylglucoside [no description available] | 1.98 | 1 | 0 | ||
| ac 263,222 imazapic: imidazolinone herbicide. imazapic : A racemate comprising equimolar amounts of (R)- and (S)-imazapic. It is a selective imidazolinone herbicide for pre- and post-emergent control of some annual and perennial grasses and broadleaf weeds. It kills plants by inhibiting the activity of the enzyme acetohydroxy acid synthase (AHAS).. 5-methyl-2-[4-methyl-5-oxo-4-(propan-2-yl)-4,5-dihydro-1H-imidazol-2-yl]pyridine-3-carboxylic acid : A pyridinemonocarboxylic acid that is 5-methylpyridine-3-carboxylic acid which is substituted at position 2 by a 4,5-dihydro-imidazol-2-yl group, which in turn is substituted at positions 4, 4, and 5 by isopropyl, methyl, and oxo groups, respectively. | 2.25 | 1 | 0 | imidazolines; imidazolone; methylpyridines; pyridinemonocarboxylic acid | |
| 1-hydroxy-1-phenyl-2-propanone 1-hydroxy-1-phenylpropan-2-one : A secondary alpha-hydroxy ketone that is benzene which is substituted by a 1-hydroxy-2-oxopropyl group at position 1. | 2.01 | 1 | 0 | benzenes; methyl ketone; secondary alpha-hydroxy ketone | |
| valerates Valerates: Derivatives of valeric acid, including its salts and esters. | 1.95 | 1 | 0 | short-chain fatty acid anion; straight-chain saturated fatty acid anion | plant metabolite |
| florox reagent Florox Reagent: reagent for analysis of ketosteroids; structure | 2.02 | 1 | 0 | ||
| xylose xylopyranose: structure in first source | 3.56 | 8 | 0 | D-xylose | |
| dimethylsulfonioacetate dimethylthetin: synthetic analog of glycine betaine; structure in first source | 2.01 | 1 | 0 | sulfonium betaine | |
| acyloin [no description available] | 1.99 | 1 | 0 | ||
| 5-hydroxymethylfurfural 5-hydroxymethylfurfural: has antisickling activity; HMF is the causative component in honey that affects the presystemic metabolism and pharmacokinetics of GZ in-vivo. 5-hydroxymethylfurfural : A member of the class of furans that is furan which is substituted at positions 2 and 5 by formyl and hydroxymethyl substituents, respectively. Virtually absent from fresh foods, it is naturally generated in sugar-containing foods during storage, and especially by drying or cooking. It is the causative component in honey that affects the presystemic metabolism and pharmacokinetics of GZ in-vivo. | 2.01 | 1 | 0 | arenecarbaldehyde; furans; primary alcohol | indicator; Maillard reaction product |
| arabinose [no description available] | 7.13 | 1 | 0 | L-arabinose | Escherichia coli metabolite; mouse metabolite |
| n-acetylneuraminic acid N-Acetylneuraminic Acid: An N-acyl derivative of neuraminic acid. N-acetylneuraminic acid occurs in many polysaccharides, glycoproteins, and glycolipids in animals and bacteria. (From Dorland, 28th ed, p1518). N-acetylneuraminic acid : An N-acylneuraminic acid where the N-acyl group is specified as acetyl. | 2.21 | 1 | 0 | N-acetylneuraminic acids | antioxidant; bacterial metabolite; EC 3.2.1.18 (exo-alpha-sialidase) inhibitor; human metabolite; mouse metabolite |
| glucosamine D-glucosamine : An amino sugar whose structure comprises D-glucose having an amino substituent at position 2.. 2-amino-2-deoxy-D-glucopyranose : A D-glucosamine whose structure comprises D-glucopyranose having an amino substituent at position 2. | 2.61 | 2 | 0 | D-glucosamine | Escherichia coli metabolite; geroprotector; mouse metabolite |
| glucosamine 6-phosphate glucosamine 6-phosphate: RN given refers to parent cpd | 2.25 | 1 | 0 | 2-amino-2-deoxy-D-glucopyranose 6-phosphate | human metabolite; Saccharomyces cerevisiae metabolite |
| raffinose Raffinose: A trisaccharide occurring in Australian manna (from Eucalyptus spp, Myrtaceae) and in cottonseed meal.. raffinose : A trisaccharide composed of alpha-D-galactopyranose, alpha-D-glucopyranose and beta-D-fructofuranose joined in sequence by 1->6 and 1<->2 glycosidic linkages, respectively. | 1.95 | 1 | 0 | raffinose family oligosaccharide; trisaccharide | mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite |
| acetyl coenzyme a Acetyl Coenzyme A: Acetyl CoA participates in the biosynthesis of fatty acids and sterols, in the oxidation of fatty acids and in the metabolism of many amino acids. It also acts as a biological acetylating agent. | 1.97 | 1 | 0 | acyl-CoA | acyl donor; coenzyme; effector; fundamental metabolite |
| retinol Vitamin A: Retinol and derivatives of retinol that play an essential role in metabolic functioning of the retina, the growth of and differentiation of epithelial tissue, the growth of bone, reproduction, and the immune response. Dietary vitamin A is derived from a variety of CAROTENOIDS found in plants. It is enriched in the liver, egg yolks, and the fat component of dairy products.. vitamin A : Any member of a group of fat-soluble retinoids produced via metabolism of provitamin A carotenoids that exhibit biological activity against vitamin A deficiency. Vitamin A is involved in immune function, vision, reproduction, and cellular communication.. all-trans-retinol : A retinol in which all four exocyclic double bonds have E- (trans-) geometry.. retinol : A retinoid consisting of 3,7-dimethylnona-2,4,6,8-tetraen-1-ol substituted at position 9 by a 2,6,6-trimethylcyclohex-1-en-1-yl group (geometry of the four exocyclic double bonds is not specified). | 1.94 | 1 | 0 | retinol; vitamin A | human metabolite; mouse metabolite; plant metabolite |
| cocaine Cocaine: An alkaloid ester extracted from the leaves of plants including coca. It is a local anesthetic and vasoconstrictor and is clinically used for that purpose, particularly in the eye, ear, nose, and throat. It also has powerful central nervous system effects similar to the amphetamines and is a drug of abuse. Cocaine, like amphetamines, acts by multiple mechanisms on brain catecholaminergic neurons; the mechanism of its reinforcing effects is thought to involve inhibition of dopamine uptake.. cocaine : A tropane alkaloid obtained from leaves of the South American shrub Erythroxylon coca. | 2.53 | 2 | 0 | benzoate ester; methyl ester; tertiary amino compound; tropane alkaloid | adrenergic uptake inhibitor; central nervous system stimulant; dopamine uptake inhibitor; environmental contaminant; local anaesthetic; mouse metabolite; plant metabolite; serotonin uptake inhibitor; sodium channel blocker; sympathomimetic agent; vasoconstrictor agent; xenobiotic |
| riboflavin vitamin B2 : Any member of a group of vitamers that belong to the chemical structural class called flavins that exhibit biological activity against vitamin B2 deficiency. Symptoms associated with vitamin B2 deficiency include glossitis, seborrhea, angular stomaitis, cheilosis and photophobia. The vitamers include riboflavin and its phosphate derivatives (and includes their salt, ionised and hydrate forms). | 7.66 | 3 | 0 | flavin; vitamin B2 | anti-inflammatory agent; antioxidant; cofactor; Escherichia coli metabolite; food colouring; fundamental metabolite; human urinary metabolite; mouse metabolite; photosensitizing agent; plant metabolite |
| sodium acetate, anhydrous Sodium Acetate: The trihydrate sodium salt of acetic acid, which is used as a source of sodium ions in solutions for dialysis and as a systemic and urinary alkalizer, diuretic, and expectorant. | 2.48 | 2 | 0 | organic sodium salt | NMR chemical shift reference compound |
| geraniol [no description available] | 2.08 | 1 | 0 | 3,7-dimethylocta-2,6-dien-1-ol; monoterpenoid; primary alcohol | allergen; fragrance; plant metabolite; volatile oil component |
| flavin-adenine dinucleotide Flavin-Adenine Dinucleotide: A condensation product of riboflavin and adenosine diphosphate. The coenzyme of various aerobic dehydrogenases, e.g., D-amino acid oxidase and L-amino acid oxidase. (Lehninger, Principles of Biochemistry, 1982, p972) | 4.34 | 6 | 0 | flavin adenine dinucleotide; vitamin B2 | cofactor; Escherichia coli metabolite; human metabolite; mouse metabolite; prosthetic group |
| sesquiterpenes [no description available] | 2.44 | 2 | 0 | ||
| D-fructopyranose [no description available] | 1.95 | 1 | 0 | cyclic hemiketal; D-fructose; fructopyranose | sweetening agent |
| nadp [no description available] | 8.65 | 9 | 0 | ||
| 2-ketogluconate 2-ketogluconate: RN given refers to parent cpd without isomeric designation. 2-dehydro-D-gluconic acid : A ketoaldonic acid that is D-gluconic acid in which the hydroxy group at position 2 has been oxidised to a keto group. | 2.15 | 1 | 0 | keto-D-gluconic acid | bacterial metabolite |
| sodium dodecyl sulfate Sodium Dodecyl Sulfate: An anionic surfactant, usually a mixture of sodium alkyl sulfates, mainly the lauryl; lowers surface tension of aqueous solutions; used as fat emulsifier, wetting agent, detergent in cosmetics, pharmaceuticals and toothpastes; also as research tool in protein biochemistry.. sodium dodecyl sulfate : An organic sodium salt that is the sodium salt of dodecyl hydrogen sulfate. | 1.98 | 1 | 0 | organic sodium salt | detergent; protein denaturant |
| 2,4-dinitrophenylhydrazine 2,4-dinitrophenylhydrazine: structure. 2,4-dinitrophenylhydrazine : A C-nitro compound that is phenylhydrazine substituted at the 2- and 4-positions by nitro groups. | 2.11 | 1 | 0 | C-nitro compound; phenylhydrazines | reagent |
| homoserine lactone homoserine lactone: a putative signal for starvation in E. coli; structure in first source. homoserinium lactone : The conjugate acid of homoserine lactone; major species at pH 7.3.. homoserine lactone : A butan-4-olide having an amino substituent at the 2-position. | 2.06 | 1 | 0 | ammonium ion derivative; organic cation | |
| vitamin k semiquinone radical vitamin K semiquinone radical: found in active preparations of vitamin K-dependent carboxylase. vitamin K : Any member of a group of fat-soluble 2-methyl-1,4-napthoquinones that exhibit biological activity against vitamin K deficiency. Vitamin K is required for the synthesis of prothrombin and certain other blood coagulation factors. | 1.94 | 1 | 0 | ||
| esculin [no description available] | 2.36 | 2 | 0 | beta-D-glucoside; hydroxycoumarin | antioxidant; metabolite |
| humulene humulene: structure given in first source. (1E,4E,8E)-alpha-humulene : The (1E,4E,8E)-isomer of alpha-humulene. | 2.25 | 1 | 0 | alpha-humulene | |
| menaquinone 6 menaquinone 6: RN given refers to (all-E)-isomer | 2.06 | 1 | 0 | ||
| arsenic Arsenic: A shiny gray element with atomic symbol As, atomic number 33, and atomic weight 75. It occurs throughout the universe, mostly in the form of metallic arsenides. Most forms are toxic. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), arsenic and certain arsenic compounds have been listed as known carcinogens. (From Merck Index, 11th ed) | 2.35 | 2 | 0 | metalloid atom; pnictogen | micronutrient |
| sulfur Sulfur: An element that is a member of the chalcogen family. It has an atomic symbol S, atomic number 16, and atomic weight [32.059; 32.076]. It is found in the amino acids cysteine and methionine. | 2.44 | 2 | 0 | chalcogen; nonmetal atom | macronutrient |
| beta-damascenone beta-damascenone: from Ipomoea pes-caprea; RN given refers to cpd without isomeric designation; RN 23726-93-4 refers to beta-damascenone; structure given in first source. beta-damascenone : A cyclic monoterpene ketone that is 2,6,6-trimethylcyclohexa-1,3-diene substituted at position 1 by a crotonoyl group. | 2.08 | 1 | 0 | apo carotenoid monoterpenoid; cyclic monoterpene ketone; enone | fragrance; plant metabolite; volatile oil component |
| deoxyribose [no description available] | 6.93 | 1 | 0 | deoxypentose | human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
| fumarates Fumarates: Compounds based on fumaric acid.. fumarate(2-) : A C4-dicarboxylate that is the E-isomer of but-2-enedioate(2-) | 1.96 | 1 | 0 | butenedioate; C4-dicarboxylate | human metabolite; metabolite; Saccharomyces cerevisiae metabolite |
| abscisic acid Abscisic Acid: Abscission-accelerating plant growth substance isolated from young cotton fruit, leaves of sycamore, birch, and other plants, and from potatoes, lemons, avocados, and other fruits.. (S)-2-trans-abscisic acid : A 2-trans-abscisic acid with (S)-configuration at the chiral centre.. (+)-abscisic acid : The naturally occurring (1'S)-(+) enantiomer of abscisic acid. It is an important sesquiterpenoid plant hormone which acts as a regulator of plant responses to environmental stresses such as drought and cold. | 2.17 | 1 | 0 | 2-trans-abscisic acid | |
| ribose ribopyranose : The pyranose form of ribose. | 2.15 | 1 | 0 | D-ribose; ribopyranose | |
| acebutolol alpha-D-glucosyl-(1->4)-alpha-D-mannose : An alpha-D-glucosyl-(1->4)-D-mannopyranose in which the anomeric hydroxy group has alpha configuration. | 1.95 | 1 | 0 | alpha-D-glucosyl-(1->4)-D-mannopyranose | |
| sodium acetate sodium diacetate: *acetates | 2.06 | 1 | 0 | ||
| nad NAD(1-) : An anionic form of nicotinamide adenine dinucleotide arising from deprotonation of the two OH groups of the diphosphate moiety. | 4.62 | 26 | 0 | organophosphate oxoanion | cofactor; human metabolite; hydrogen acceptor; Saccharomyces cerevisiae metabolite |
| gramicidin a Gramicidin: A group of peptide antibiotics from BACILLUS brevis. Gramicidin C or S is a cyclic, ten-amino acid polypeptide and gramicidins A, B, D are linear. Gramicidin is one of the two principal components of TYROTHRICIN. | 1.96 | 1 | 0 | ||
| peptones Peptones: Derived proteins or mixtures of cleavage products produced by the partial hydrolysis of a native protein either by an acid or by an enzyme. Peptones are readily soluble in water, and are not precipitable by heat, by alkalis, or by saturation with ammonium sulfate. (Dorland, 28th ed) | 1.95 | 1 | 0 | ||
| heme Heme: The color-furnishing portion of hemoglobin. It is found free in tissues and as the prosthetic group in many hemeproteins.. ferroheme : Any iron(II)--porphyrin coordination complex.. ferroheme b : Heme b in which the iron has oxidation state +2.. heme : A heme is any tetrapyrrolic chelate of iron. | 2.6 | 1 | 0 | ||
| ascorbic acid Ascorbic Acid: A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Its biologically active form, vitamin C, functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant.. L-ascorbic acid : The L-enantiomer of ascorbic acid and conjugate acid of L-ascorbate.. L-ascorbate : The L-enantiomer of ascorbate and conjugate base of L-ascorbic acid, arising from selective deprotonation of the 3-hydroxy group. Required for a range of essential metabolic reactions in all animals and plants.. vitamin C : Any member of a group of vitamers that belong to the chemical structural class called butenolides that exhibit biological activity against vitamin C deficiency in animals. The vitamers include L-ascorbic acid and its salt, ionized and oxidized forms. | 2.21 | 1 | 0 | ascorbic acid; vitamin C | coenzyme; cofactor; flour treatment agent; food antioxidant; food colour retention agent; geroprotector; plant metabolite; skin lightening agent |
| soda lime soda lime: a mixture of calcium oxide (lime) with 5-20% sodium hydroxide and 6-18% water; carbon dioxide adsorbant | 2.07 | 1 | 0 | ||
| agar Agar: A complex sulfated polymer of galactose units, extracted from Gelidium cartilagineum, Gracilaria confervoides, and related red algae. It is used as a gel in the preparation of solid culture media for microorganisms, as a bulk laxative, in making emulsions, and as a supporting medium for immunodiffusion and immunoelectrophoresis.. agar : A complex mixture of polysaccharides extracted from species of red algae. Its two main components are agarose and agaropectin. Agarose is the component responsible for the high-strength gelling properties of agar, while agaropectin provides the viscous properties. | 7.38 | 2 | 0 | ||
| caseins Caseins: A mixture of related phosphoproteins occurring in milk and cheese. The group is characterized as one of the most nutritive milk proteins, containing all of the common amino acids and rich in the essential ones. | 2.4 | 2 | 0 | ||
| nattokinase nattokinase: isolated from the Japanese soybean cheese Natto; MW: 20,000; pI=8.6 | 7.41 | 1 | 0 | ||
| hyaluronoglucosaminidase Hyaluronoglucosaminidase: An enzyme that catalyzes the random hydrolysis of 1,4-linkages between N-acetyl-beta-D-glucosamine and D-glucuronate residues in hyaluronate. (From Enzyme Nomenclature, 1992) There has been use as ANTINEOPLASTIC AGENTS to limit NEOPLASM METASTASIS. | 3.05 | 1 | 0 | ||
| exudates Malaysia: A parliamentary democracy with a constitutional monarch in southeast Asia, consisting of 11 states (West Malaysia) on the Malay Peninsula and two states (East Malaysia) on the island of BORNEO. It is also called the Federation of Malaysia. Its capital is Kuala Lumpur. Before 1963 it was the Union of Malaya. It reorganized in 1948 as the Federation of Malaya, becoming independent from British Malaya in 1957 and becoming Malaysia in 1963 as a federation of Malaya, Sabah, Sarawak, and Singapore (which seceded in 1965). The form Malay- probably derives from the Tamil malay, mountain, with reference to its geography. (From Webster's New Geographical Dictionary, 1988, p715 & Room, Brewer's Dictionary of Names, 1992, p329) | 2.25 | 1 | 0 | ||
| levoleucovorin Levoleucovorin: A folate analog consisting of the pharmacologically active isomer of LEUCOVORIN.. (6S)-5-formyltetrahydrofolic acid : The pharmacologically active (6S)-stereoisomer of 5-formyltetrahydrofolic acid. | 1.93 | 1 | 0 | 5-formyltetrahydrofolic acid | antineoplastic agent; metabolite |
| sepiapterin sepiapterin: A substrate of sepiapterin reductase | 1.96 | 1 | 0 | sepiapterin | |
| guanosine pentaphosphate Guanosine Pentaphosphate: Guanosine 5'-triphosphate 2'(3')-diphosphate. A guanine nucleotide containing five phosphate groups. Three phosphate groups are esterified to the sugar moiety in the 5' position and the other two in the 2' or 3' position. This nucleotide serves as a messenger to turn off the synthesis of ribosomal RNA when amino acids are not available for protein synthesis.. guanosine 3'-diphosphate 5'-triphosphate : A guanosine bisphosphate having a diphosphate at the 3'-position and a triphosphate at the 5'-position. | 2.11 | 1 | 0 | guanosine 5'-phosphate; guanosine bisphosphate | Escherichia coli metabolite; mouse metabolite |
| 7,8-dihydrobiopterin 7,8-dihydrobiopterin: RN given refers to (S-(R*,S*))-isomer. 7,8-dihydrobiopterin : A dihydropterin that is biopterin dihydrogenated at positions 7 and 8.. L-erythro-7,8-dihydrobiopterin : A 7,8-dihydrobiopterin in which the 1,2-dihydroxypropyl group has (1R,2S)-configuration; naturally occurring form. | 1.96 | 1 | 0 | 7,8-dihydrobiopterin | |
| enterocin a enterocin A: isolated from Enterococcus faecium; amino acid sequence in first source; do not confuse with enterocin | 2.13 | 1 | 0 |
| Condition | Indicated | Relationship Strength | Studies | Trials |
|---|---|---|---|---|
| Cystic Fibrosis of Pancreas [description not available] | 0 | 2.41 | 1 | 0 |
| Infections, Pseudomonas [description not available] | 0 | 2.9 | 2 | 0 |
| Cystic Fibrosis An autosomal recessive genetic disease of the EXOCRINE GLANDS. It is caused by mutations in the gene encoding the CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCE REGULATOR expressed in several organs including the LUNG, the PANCREAS, the BILIARY SYSTEM, and the SWEAT GLANDS. Cystic fibrosis is characterized by epithelial secretory dysfunction associated with ductal obstruction resulting in AIRWAY OBSTRUCTION; chronic RESPIRATORY INFECTIONS; PANCREATIC INSUFFICIENCY; maldigestion; salt depletion; and HEAT PROSTRATION. | 0 | 2.41 | 1 | 0 |
| Pseudomonas Infections Infections with bacteria of the genus PSEUDOMONAS. | 0 | 2.9 | 2 | 0 |
| Infections, Staphylococcal [description not available] | 0 | 2.93 | 4 | 0 |
| Staphylococcal Infections Infections with bacteria of the genus STAPHYLOCOCCUS. | 0 | 2.93 | 4 | 0 |
| E coli Infections [description not available] | 0 | 2.38 | 2 | 0 |
| Escherichia coli Infections Infections with bacteria of the species ESCHERICHIA COLI. | 0 | 2.38 | 2 | 0 |
| Alloxan Diabetes [description not available] | 0 | 2.6 | 1 | 0 |
| Infections, Respiratory [description not available] | 0 | 2.6 | 1 | 0 |
| Respiratory Tract Infections Invasion of the host RESPIRATORY SYSTEM by microorganisms, usually leading to pathological processes or diseases. | 0 | 2.6 | 1 | 0 |
| Disease Resistance The capacity of an organism to defend itself against pathological processes or the agents of those processes. This most often involves innate immunity whereby the organism responds to pathogens in a generic way. The term disease resistance is used most frequently when referring to plants. | 0 | 4.24 | 3 | 0 |
| Bronchiolitis, Exudative [description not available] | 0 | 3.12 | 1 | 0 |
| Disease, Pulmonary [description not available] | 0 | 3.12 | 1 | 0 |
| Diseases, Occupational [description not available] | 0 | 3.12 | 1 | 0 |
| Bronchiolitis Obliterans Inflammation of the BRONCHIOLES leading to an obstructive lung disease. Bronchioles are characterized by fibrous granulation tissue with bronchial exudates in the lumens. Clinical features include a nonproductive cough and DYSPNEA. | 0 | 3.12 | 1 | 0 |
| Lung Diseases Pathological processes involving any part of the LUNG. | 0 | 3.12 | 1 | 0 |
| Encephalopathy, Toxic [description not available] | 0 | 2.21 | 1 | 0 |
| Neuroblastoma A common neoplasm of early childhood arising from neural crest cells in the sympathetic nervous system, and characterized by diverse clinical behavior, ranging from spontaneous remission to rapid metastatic progression and death. This tumor is the most common intraabdominal malignancy of childhood, but it may also arise from thorax, neck, or rarely occur in the central nervous system. Histologic features include uniform round cells with hyperchromatic nuclei arranged in nests and separated by fibrovascular septa. Neuroblastomas may be associated with the opsoclonus-myoclonus syndrome. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, pp2099-2101; Curr Opin Oncol 1998 Jan;10(1):43-51) | 0 | 2.21 | 1 | 0 |
| Diabetes Mellitus A heterogeneous group of disorders characterized by HYPERGLYCEMIA and GLUCOSE INTOLERANCE. | 0 | 2.08 | 1 | 0 |
| Bronchial Hyperreactivity Tendency of the smooth muscle of the tracheobronchial tree to contract more intensely in response to a given stimulus than it does in the response seen in normal individuals. This condition is present in virtually all symptomatic patients with asthma. The most prominent manifestation of this smooth muscle contraction is a decrease in airway caliber that can be readily measured in the pulmonary function laboratory. | 0 | 2.08 | 1 | 0 |
| Avian Flu [description not available] | 0 | 2.08 | 1 | 0 |
| Influenza in Birds Infection of domestic and wild fowl and other BIRDS with INFLUENZA A VIRUS. Avian influenza usually does not sicken birds, but can be highly pathogenic and fatal in domestic POULTRY. | 0 | 2.08 | 1 | 0 |
| Cancer of Lung [description not available] | 0 | 2.48 | 2 | 0 |
| Lung Neoplasms Tumors or cancer of the LUNG. | 0 | 2.48 | 2 | 0 |
| Sensitivity and Specificity Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed) | 0 | 2.96 | 4 | 0 |
| Vibrio cholerae Infection [description not available] | 0 | 2.13 | 1 | 0 |
| Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. | 0 | 2.13 | 1 | 0 |
| Cholera An acute diarrheal disease endemic in India and Southeast Asia whose causative agent is VIBRIO CHOLERAE. This condition can lead to severe dehydration in a matter of hours unless quickly treated. | 0 | 2.13 | 1 | 0 |
| Cryptogenic Fibrosing Alveolitis [description not available] | 0 | 2.15 | 1 | 0 |
| Idiopathic Pulmonary Fibrosis A common interstitial lung disease of unknown etiology, usually occurring between 50-70 years of age. Clinically, it is characterized by an insidious onset of breathlessness with exertion and a nonproductive cough, leading to progressive DYSPNEA. Pathological features show scant interstitial inflammation, patchy collagen fibrosis, prominent fibroblast proliferation foci, and microscopic honeycomb change. | 0 | 2.15 | 1 | 0 |
| Adenocarcinoma, Basal Cell [description not available] | 0 | 2.05 | 1 | 0 |
| Carcinoma, Epidermoid [description not available] | 0 | 2.05 | 1 | 0 |
| Adenocarcinoma A malignant epithelial tumor with a glandular organization. | 0 | 2.05 | 1 | 0 |
| Carcinoma, Squamous Cell A carcinoma derived from stratified SQUAMOUS EPITHELIAL CELLS. It may also occur in sites where glandular or columnar epithelium is normally present. (From Stedman, 25th ed) | 0 | 2.05 | 1 | 0 |
| Mastitis, Bovine INFLAMMATION of the UDDER in cows. | 0 | 2.05 | 1 | 0 |
| Hepatocellular Carcinoma [description not available] | 0 | 2.05 | 1 | 0 |
| Cancer of Liver [description not available] | 0 | 2.05 | 1 | 0 |
| Carcinoma, Hepatocellular A primary malignant neoplasm of epithelial liver cells. It ranges from a well-differentiated tumor with EPITHELIAL CELLS indistinguishable from normal HEPATOCYTES to a poorly differentiated neoplasm. The cells may be uniform or markedly pleomorphic, or form GIANT CELLS. Several classification schemes have been suggested. | 0 | 2.05 | 1 | 0 |
| Liver Neoplasms Tumors or cancer of the LIVER. | 0 | 2.05 | 1 | 0 |
| Infections, Nematode [description not available] | 0 | 2.07 | 1 | 0 |
| Deficiency, Thiamine [description not available] | 0 | 1.93 | 1 | 0 |
| Deficiency, Vitamin B [description not available] | 0 | 1.93 | 1 | 0 |
| Thiamine Deficiency A nutritional condition produced by a deficiency of THIAMINE in the diet, characterized by anorexia, irritability, and weight loss. Later, patients experience weakness, peripheral neuropathy, headache, and tachycardia. In addition to being caused by a poor diet, thiamine deficiency in the United States most commonly occurs as a result of alcoholism, since ethanol interferes with thiamine absorption. In countries relying on polished rice as a dietary staple, BERIBERI prevalence is very high. (From Cecil Textbook of Medicine, 19th ed, p1171) | 0 | 6.93 | 1 | 0 |
| Vitamin B Deficiency A condition due to deficiency in any member of the VITAMIN B COMPLEX. These B vitamins are water-soluble and must be obtained from the diet because they are easily lost in the urine. Unlike the lipid-soluble vitamins, they cannot be stored in the body fat. | 0 | 1.93 | 1 | 0 |
| Behavior Disorders [description not available] | 0 | 1.93 | 1 | 0 |
| Mental Disorders Psychiatric illness or diseases manifested by breakdowns in the adaptational process expressed primarily as abnormalities of thought, feeling, and behavior producing either distress or impairment of function. | 0 | 1.93 | 1 | 0 |
| Ascariasis Infection by nematodes of the genus ASCARIS. Ingestion of infective eggs causes diarrhea and pneumonitis. Its distribution is more prevalent in areas of poor sanitation and where human feces are used for fertilizer. | 0 | 1.93 | 1 | 0 |
| Azotaemia [description not available] | 0 | 2.85 | 4 | 0 |
| Symptom Cluster [description not available] | 0 | 2.63 | 3 | 0 |
| Urinary Tract Diseases [description not available] | 0 | 2.34 | 2 | 0 |
| Syndrome A characteristic symptom complex. | 0 | 2.63 | 3 | 0 |
| Uremia A clinical syndrome associated with the retention of renal waste products or uremic toxins in the blood. It is usually the result of RENAL INSUFFICIENCY. Most uremic toxins are end products of protein or nitrogen CATABOLISM, such as UREA or CREATININE. Severe uremia can lead to multiple organ dysfunctions with a constellation of symptoms. | 0 | 3.44 | 8 | 0 |
| Liver Dysfunction [description not available] | 0 | 2.35 | 2 | 0 |
| Kidney Diseases Pathological processes of the KIDNEY or its component tissues. | 0 | 1.93 | 1 | 0 |
| Liver Diseases Pathological processes of the LIVER. | 0 | 2.35 | 2 | 0 |
| Encephalopathy, Hepatic [description not available] | 0 | 3.27 | 2 | 0 |
| Cirrhosis, Liver [description not available] | 0 | 3.27 | 2 | 0 |
| Hepatic Encephalopathy A syndrome characterized by central nervous system dysfunction in association with LIVER FAILURE, including portal-systemic shunts. Clinical features include lethargy and CONFUSION (frequently progressing to COMA); ASTERIXIS; NYSTAGMUS, PATHOLOGIC; brisk oculovestibular reflexes; decorticate and decerebrate posturing; MUSCLE SPASTICITY; and bilateral extensor plantar reflexes (see REFLEX, BABINSKI). ELECTROENCEPHALOGRAPHY may demonstrate triphasic waves. (From Adams et al., Principles of Neurology, 6th ed, pp1117-20; Plum & Posner, Diagnosis of Stupor and Coma, 3rd ed, p222-5) | 0 | 3.27 | 2 | 0 |
| Liver Cirrhosis Liver disease in which the normal microcirculation, the gross vascular anatomy, and the hepatic architecture have been variably destroyed and altered with fibrous septa surrounding regenerated or regenerating parenchymal nodules. | 0 | 3.27 | 2 | 0 |
| Dermatitis Medicamentosa [description not available] | 0 | 1.93 | 1 | 0 |
| Infections, Listeria [description not available] | 0 | 2.02 | 1 | 0 |
| Aggression Behavior which may be manifested by destructive and attacking action which is verbal or physical, by covert attitudes of hostility or by obstructionism. | 0 | 2.03 | 1 | 0 |
| Dermatoses [description not available] | 0 | 1.96 | 1 | 0 |
| Skin Diseases Diseases involving the DERMIS or EPIDERMIS. | 0 | 1.96 | 1 | 0 |
| Coagulation Disorders, Blood [description not available] | 0 | 2.87 | 1 | 0 |
| Brain Swelling [description not available] | 0 | 2.87 | 1 | 0 |
| Altered Level of Consciousness [description not available] | 0 | 2.87 | 1 | 0 |
| Hyperesthesia Increased sensitivity to cutaneous stimulation due to a diminished threshold or an increased response to stimuli. | 0 | 2.87 | 1 | 0 |
| Acid-Base Imbalance Disturbances in the ACID-BASE EQUILIBRIUM of the body. | 0 | 2.87 | 1 | 0 |
| Blood Coagulation Disorders Hemorrhagic and thrombotic disorders that occur as a consequence of abnormalities in blood coagulation due to a variety of factors such as COAGULATION PROTEIN DISORDERS; BLOOD PLATELET DISORDERS; BLOOD PROTEIN DISORDERS or nutritional conditions. | 0 | 2.87 | 1 | 0 |
| Brain Edema Increased intracellular or extracellular fluid in brain tissue. Cytotoxic brain edema (swelling due to increased intracellular fluid) is indicative of a disturbance in cell metabolism, and is commonly associated with hypoxic or ischemic injuries (see HYPOXIA, BRAIN). An increase in extracellular fluid may be caused by increased brain capillary permeability (vasogenic edema), an osmotic gradient, local blockages in interstitial fluid pathways, or by obstruction of CSF flow (e.g., obstructive HYDROCEPHALUS). (From Childs Nerv Syst 1992 Sep; 8(6):301-6) | 0 | 2.87 | 1 | 0 |
| Electrolytes Substances that dissociate into two or more ions, to some extent, in water. Solutions of electrolytes thus conduct an electric current and can be decomposed by it (ELECTROLYSIS). (Grant & Hackh's Chemical Dictionary, 5th ed) | 0 | 2.87 | 1 | 0 |
| Hepatitis INFLAMMATION of the LIVER. | 0 | 2.87 | 1 | 0 |
| Chronic Kidney Failure [description not available] | 0 | 1.96 | 1 | 0 |
| Kidney Failure, Chronic The end-stage of CHRONIC RENAL INSUFFICIENCY. It is characterized by the severe irreversible kidney damage (as measured by the level of PROTEINURIA) and the reduction in GLOMERULAR FILTRATION RATE to less than 15 ml per min (Kidney Foundation: Kidney Disease Outcome Quality Initiative, 2002). These patients generally require HEMODIALYSIS or KIDNEY TRANSPLANTATION. | 0 | 1.96 | 1 | 0 |
| Cacosmia [description not available] | 0 | 1.98 | 1 | 0 |
| Dysgeusia A condition characterized by alterations of the sense of taste which may range from mild to severe, including gross distortions of taste quality. | 0 | 1.98 | 1 | 0 |
| Halitosis An offensive, foul breath odor resulting from a variety of causes such as poor oral hygiene, dental or oral infections, or the ingestion of certain foods. | 0 | 1.98 | 1 | 0 |
| Alcohol Abuse [description not available] | 0 | 3.29 | 2 | 0 |
| Inborn Errors of Metabolism [description not available] | 0 | 3.29 | 2 | 0 |
| Acidosis, Diabetic [description not available] | 0 | 2.89 | 1 | 0 |
| Alcoholism A primary, chronic disease with genetic, psychosocial, and environmental factors influencing its development and manifestations. The disease is often progressive and fatal. It is characterized by impaired control over drinking, preoccupation with the drug alcohol, use of alcohol despite adverse consequences, and distortions in thinking, most notably denial. Each of these symptoms may be continuous or periodic. (Morse & Flavin for the Joint Commission of the National Council on Alcoholism and Drug Dependence and the American Society of Addiction Medicine to Study the Definition and Criteria for the Diagnosis of Alcoholism: in JAMA 1992;268:1012-4) | 0 | 3.29 | 2 | 0 |
| Metabolism, Inborn Errors Errors in metabolic processes resulting from inborn genetic mutations that are inherited or acquired in utero. | 0 | 3.29 | 2 | 0 |
| Diabetic Ketoacidosis A life-threatening complication of diabetes mellitus, primarily of TYPE 1 DIABETES MELLITUS with severe INSULIN deficiency and extreme HYPERGLYCEMIA. It is characterized by KETOSIS; DEHYDRATION; and depressed consciousness leading to COMA. | 0 | 2.89 | 1 | 0 |
| Carcinoma, Ehrlich Tumor A transplantable, poorly differentiated malignant tumor which appeared originally as a spontaneous breast carcinoma in a mouse. It grows in both solid and ascitic forms. | 0 | 2.66 | 3 | 0 |
| Infant, Premature, Diseases Diseases that occur in PREMATURE INFANTS. | 0 | 1.97 | 1 | 0 |
| Experimental Neoplasms [description not available] | 0 | 2.37 | 2 | 0 |
| Blood Poisoning [description not available] | 0 | 2.37 | 2 | 0 |
| Infections, Klebsiella [description not available] | 0 | 1.97 | 1 | 0 |
| Klebsiella Infections Infections with bacteria of the genus KLEBSIELLA. | 0 | 1.97 | 1 | 0 |
| Sepsis Systemic inflammatory response syndrome with a proven or suspected infectious etiology. When sepsis is associated with organ dysfunction distant from the site of infection, it is called severe sepsis. When sepsis is accompanied by HYPOTENSION despite adequate fluid infusion, it is called SEPTIC SHOCK. | 0 | 2.37 | 2 | 0 |
| Diarrhea An increased liquidity or decreased consistency of FECES, such as running stool. Fecal consistency is related to the ratio of water-holding capacity of insoluble solids to total water, rather than the amount of water present. Diarrhea is not hyperdefecation or increased fecal weight. | 0 | 1.96 | 1 | 0 |