Substance | Relationship Strength | Studies | Trials | Classes | Roles |
aminolevulinic acid Aminolevulinic Acid: A compound produced from succinyl-CoA and GLYCINE as an intermediate in heme synthesis. It is used as a PHOTOCHEMOTHERAPY for actinic KERATOSIS.. 5-aminolevulinic acid : The simplest delta-amino acid in which the hydrogens at the gamma position are replaced by an oxo group. It is metabolised to protoporphyrin IX, a photoactive compound which accumulates in the skin. Used (in the form of the hydrochloride salt)in combination with blue light illumination for the treatment of minimally to moderately thick actinic keratosis of the face or scalp. | 1.97 | 1 | 0 | 4-oxo monocarboxylic acid; amino acid zwitterion; delta-amino acid | antineoplastic agent; dermatologic drug; Escherichia coli metabolite; human metabolite; mouse metabolite; photosensitizing agent; plant metabolite; prodrug; Saccharomyces cerevisiae metabolite |
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. | 1.96 | 1 | 0 | monocarboxylic acid | antimicrobial food preservative; Daphnia magna metabolite; food acidity regulator; protic solvent |
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. | 2.13 | 1 | 0 | elemental hydrogen; elemental molecule; gas molecular entity | antioxidant; electron donor; food packaging gas; fuel; human metabolite |
uric acid Uric Acid: An oxidation product, via XANTHINE OXIDASE, of oxypurines such as XANTHINE and HYPOXANTHINE. It is the final oxidation product of purine catabolism in humans and primates, whereas in most other mammals URATE OXIDASE further oxidizes it to ALLANTOIN.. uric acid : An oxopurine that is the final oxidation product of purine metabolism.. 6-hydroxy-1H-purine-2,8(7H,9H)-dione : A tautomer of uric acid having oxo groups at C-2 and C-8 and a hydroxy group at C-6.. 7,9-dihydro-1H-purine-2,6,8(3H)-trione : An oxopurine in which the purine ring is substituted by oxo groups at positions 2, 6, and 8. | 2.01 | 1 | 0 | uric acid | Escherichia coli metabolite; human metabolite; mouse metabolite |
ro 48-8071 Ro 48-8071: a cholesterol synthesis inhibitor; structure in first source. Ro 48-8071 : An aromatic ketone that is 2-fluoro-4'-bromobenzophenone in which the hydrogen at position 4 (meta to the fluoro group) is replaced by a 6-[methyl(prop-2-en-1-yl)amino]hexyl}oxy group. An inhibitor of lanosterol synthase. | 2.7 | 3 | 0 | aromatic ether; aromatic ketone; bromobenzenes; monofluorobenzenes; olefinic compound; tertiary amino compound | antineoplastic agent; EC 5.4.99.7 (lanosterol synthase) inhibitor |
chloroquine Chloroquine: The prototypical antimalarial agent with a mechanism that is not well understood. It has also been used to treat rheumatoid arthritis, systemic lupus erythematosus, and in the systemic therapy of amebic liver abscesses.. chloroquine : An aminoquinoline that is quinoline which is substituted at position 4 by a [5-(diethylamino)pentan-2-yl]amino group at at position 7 by chlorine. It is used for the treatment of malaria, hepatic amoebiasis, lupus erythematosus, light-sensitive skin eruptions, and rheumatoid arthritis. | 1.96 | 1 | 0 | aminoquinoline; organochlorine compound; secondary amino compound; tertiary amino compound | anticoronaviral agent; antimalarial; antirheumatic drug; autophagy inhibitor; dermatologic drug |
ketoconazole 1-acetyl-4-(4-{[2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy}phenyl)piperazine : A dioxolane that is 1,3-dioxolane which is substituted at positions 2, 2, and 4 by imidazol-1-ylmethyl, 2,4-dichlorophenyl, and [para-(4-acetylpiperazin-1-yl)phenoxy]methyl groups, respectively. | 2 | 1 | 0 | dichlorobenzene; dioxolane; ether; imidazoles; N-acylpiperazine; N-arylpiperazine | |
methoxsalen Methoxsalen: A naturally occurring furocoumarin compound found in several species of plants, including Psoralea corylifolia. It is a photoactive substance that forms DNA ADDUCTS in the presence of ultraviolet A irradiation.. methoxsalen : A member of the class of psoralens that is 7H-furo[3,2-g]chromen-7-one in which the 9 position is substituted by a methoxy group. It is a constituent of the fruits of Ammi majus. Like other psoralens, trioxsalen causes photosensitization of the skin. It is administered topically or orally in conjunction with UV-A for phototherapy treatment of vitiligo and severe psoriasis. | 2.36 | 2 | 0 | aromatic ether; psoralens | antineoplastic agent; cross-linking reagent; dermatologic drug; photosensitizing agent; plant metabolite |
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. | 2.48 | 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 |
tyrosine Tyrosine: A non-essential amino acid. In animals it is synthesized from PHENYLALANINE. It is also the precursor of EPINEPHRINE; THYROID HORMONES; and melanin.. tyrosine : An alpha-amino acid that is phenylalanine bearing a hydroxy substituent at position 4 on the phenyl ring. | 2.21 | 1 | 0 | amino acid zwitterion; erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid; proteinogenic amino acid; tyrosine | EC 1.3.1.43 (arogenate dehydrogenase) inhibitor; fundamental metabolite; micronutrient; nutraceutical |
phenylalanine Phenylalanine: An essential aromatic amino acid that is a precursor of MELANIN; DOPAMINE; noradrenalin (NOREPINEPHRINE), and THYROXINE.. L-phenylalanine : The L-enantiomer of phenylalanine.. phenylalanine : An aromatic amino acid that is alanine in which one of the methyl hydrogens is substituted by a phenyl group. | 2.6 | 1 | 0 | amino acid zwitterion; erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid; phenylalanine; proteinogenic amino acid | algal metabolite; EC 3.1.3.1 (alkaline phosphatase) inhibitor; Escherichia coli metabolite; human xenobiotic metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite |
threonine Threonine: An essential amino acid occurring naturally in the L-form, which is the active form. It is found in eggs, milk, gelatin, and other proteins.. threonine : An alpha-amino acid in which one of the hydrogens attached to the alpha-carbon of glycine is substituted by a 1-hydroxyethyl group. | 2.6 | 1 | 0 | amino acid zwitterion; aspartate family amino acid; L-alpha-amino acid; proteinogenic amino acid; threonine | algal metabolite; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite |
cumene hydroperoxide cumene hydroperoxide: RN given refers to parent cpd. cumene hydroperoxide : A peroxol that is cumene in which the alpha-hydrogen is replaced by a hydroperoxy group. | 1.97 | 1 | 0 | peroxol | environmental contaminant; Mycoplasma genitalium metabolite; oxidising agent |
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. | 2.05 | 1 | 0 | pyrrole; secondary amine | |
propylene propylene: structure | 2.02 | 1 | 0 | alkene; gas molecular entity | refrigerant; xenobiotic |
cyclopentane Cyclopentanes: A group of alicyclic hydrocarbons with the general formula R-C5H9.. cyclopentanes : Cyclopentane and its derivatives formed by substitution. | 2.91 | 3 | 0 | cycloalkane; cyclopentanes; volatile organic compound | non-polar solvent |
oxazoles Oxazoles: Five-membered heterocyclic ring structures containing an oxygen in the 1-position and a nitrogen in the 3-position, in distinction from ISOXAZOLES where they are at the 1,2 positions.. 1,3-oxazole : A five-membered monocyclic heteroarene that is an analogue of cyclopentadiene with O in place of CH2 at position 1 and N in place of CH at position 3.. oxazole : An azole based on a five-membered heterocyclic aromatic skeleton containing one N and one O atom. | 1.99 | 1 | 0 | 1,3-oxazoles; mancude organic heteromonocyclic parent; monocyclic heteroarene | |
thiazoles [no description available] | 2.02 | 1 | 0 | 1,3-thiazoles; mancude organic heteromonocyclic parent; monocyclic heteroarene | |
oleanolic acid [no description available] | 3.71 | 9 | 0 | hydroxy monocarboxylic acid; pentacyclic triterpenoid | plant metabolite |
malondialdehyde Malondialdehyde: The dialdehyde of malonic acid.. malonaldehyde : A dialdehyde that is propane substituted by two oxo groups at the terminal carbon atoms respectively. A biomarker of oxidative damage to lipids caused by smoking, it exists in vivo mainly in the enol form. | 2.73 | 3 | 0 | dialdehyde | biomarker |
d-alpha tocopherol Vitamin E: A generic descriptor for all TOCOPHEROLS and TOCOTRIENOLS that exhibit ALPHA-TOCOPHEROL activity. By virtue of the phenolic hydrogen on the 2H-1-benzopyran-6-ol nucleus, these compounds exhibit varying degree of antioxidant activity, depending on the site and number of methyl groups and the type of ISOPRENOIDS.. tocopherol : A collective name for a group of closely related lipids that contain a chroman-6-ol nucleus substituted at position 2 by a methyl group and by a saturated hydrocarbon chain consisting of three isoprenoid units. They are designated as alpha-, beta-, gamma-, and delta-tocopherol depending on the number and position of additional methyl substituents on the aromatic ring. Tocopherols occur in vegetable oils and vegetable oil products, almost exclusively with R,R,R configuration. Tocotrienols differ from tocopherols only in having three double bonds in the hydrocarbon chain.. vitamin E : Any member of a group of fat-soluble chromanols that exhibit biological activity against vitamin E deficiency. The vitamers in this class consists of a chroman-6-ol core which is substituted at position 2 by a methyl group and (also at position 2) either a saturated or a triply-unsaturated hydrocarbon chain consisting of three isoprenoid units. The major function of vitamin E is to act as a natural antioxidant by scavenging free radicals and molecular oxygen.. (R,R,R)-alpha-tocopherol : An alpha-tocopherol that has R,R,R configuration. The naturally occurring stereoisomer of alpha-tocopherol, it is found particularly in sunflower and olive oils. | 2.4 | 2 | 0 | alpha-tocopherol | algal metabolite; antiatherogenic agent; anticoagulant; antioxidant; antiviral agent; EC 2.7.11.13 (protein kinase C) inhibitor; immunomodulator; micronutrient; nutraceutical; plant metabolite |
deuterium Deuterium: The stable isotope of hydrogen. It has one neutron and one proton in the nucleus. | 2.39 | 2 | 0 | dihydrogen | |
deuterium oxide Deuterium Oxide: The isotopic compound of hydrogen of mass 2 (deuterium) with oxygen. (From Grant & Hackh's Chemical Dictionary, 5th ed) It is used to study mechanisms and rates of chemical or nuclear reactions, as well as biological processes. | 1.96 | 1 | 0 | deuterated compound; water | NMR solvent |
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. | 3.26 | 6 | 0 | benzenes; phenyl acetates | |
alkenes [no description available] | 2.74 | 3 | 0 | | |
sodium azide Sodium Azide: A cytochrome oxidase inhibitor which is a nitridizing agent and an inhibitor of terminal oxidation. (From Merck Index, 12th ed). sodium azide : The sodium salt of hydrogen azide (hydrazoic acid). | 1.96 | 1 | 0 | inorganic sodium salt | antibacterial agent; explosive; mitochondrial respiratory-chain inhibitor; mutagen |
azides Azides: Organic or inorganic compounds that contain the -N3 group.. azide : Any nitrogen molecular entity containing the group -N3. | 1.96 | 1 | 0 | pseudohalide anion | mitochondrial respiratory-chain inhibitor |
lovastatin Lovastatin: A fungal metabolite isolated from cultures of Aspergillus terreus. The compound is a potent anticholesteremic agent. It inhibits 3-hydroxy-3-methylglutaryl coenzyme A reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES), which is the rate-limiting enzyme in cholesterol biosynthesis. It also stimulates the production of low-density lipoprotein receptors in the liver.. lovastatin : A fatty acid ester that is mevastatin carrying an additional methyl group on the carbobicyclic skeleton. It is used in as an anticholesteremic drug and has been found in fungal species such as Aspergillus terreus and Pleurotus ostreatus (oyster mushroom). | 1.99 | 1 | 0 | delta-lactone; fatty acid ester; hexahydronaphthalenes; polyketide; statin (naturally occurring) | anticholesteremic drug; antineoplastic agent; Aspergillus metabolite; prodrug |
simvastatin Simvastatin: A derivative of LOVASTATIN and potent competitive inhibitor of 3-hydroxy-3-methylglutaryl coenzyme A reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES), which is the rate-limiting enzyme in cholesterol biosynthesis. It may also interfere with steroid hormone production. Due to the induction of hepatic LDL RECEPTORS, it increases breakdown of LDL CHOLESTEROL.. simvastatin : A member of the class of hexahydronaphthalenes that is lovastatin in which the 2-methylbutyrate ester moiety has been replaced by a 2,2-dimethylbutyrate ester group. It is used as a cholesterol-lowering and anti-cardiovascular disease drug. | 6.99 | 1 | 0 | delta-lactone; fatty acid ester; hexahydronaphthalenes; statin (semi-synthetic) | EC 1.1.1.34/EC 1.1.1.88 (hydroxymethylglutaryl-CoA reductase) inhibitor; EC 3.4.24.83 (anthrax lethal factor endopeptidase) inhibitor; ferroptosis inducer; geroprotector; prodrug |
thiazolyl blue thiazolyl blue: RN & II refers to bromide. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide : The bromide salt of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium. | 2.02 | 1 | 0 | organic bromide salt | colorimetric reagent; dye |
betulinic acid [no description available] | 2.25 | 1 | 0 | hydroxy monocarboxylic acid; pentacyclic triterpenoid | anti-HIV agent; anti-inflammatory agent; antimalarial; antineoplastic agent; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor; plant metabolite |
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. | 2.05 | 1 | 0 | 1,2,3-triazole | |
beta-amyrin beta-amyrin: alpha-amyrin is also available; a 5 ring triterpene derived from oleanane that differs from alpha-amyrin in having the 29-carbon at the 20 position; RN given refers to (3 beta)-isomer. beta-amyrin : A pentacyclic triterpenoid that is oleanane substituted at the 3beta-position by a hydroxy group and containing a double bond between positions 12 and 13. It is one of the most commonly occurring triterpenoids in higher plants. | 3.47 | 7 | 0 | pentacyclic triterpenoid; secondary alcohol | Aspergillus metabolite; plant metabolite |
1-dodecylimidazole [no description available] | 6.94 | 1 | 0 | | |
friedelin 3-friedelanone: from the stem bark of Irvingia gabonensis; structure in first source. friedelin : A pentacyclic triterpenoid that is perhydropicene which is substituted by an oxo group at position 3 and by methyl groups at the 4, 4a, 6b, 8a, 11, 11, 12b, and 14a-positions (the 4R,4aS,6aS,6bR,8aR,12aR,12bS,14aS,14bS-enantiomer). It is the major triterpenoid constituent of cork. | 2.52 | 2 | 0 | cyclic terpene ketone; pentacyclic triterpenoid | anti-inflammatory drug; antipyretic; non-narcotic analgesic; plant metabolite |
cycloartenol [no description available] | 3.11 | 1 | 0 | 3beta-sterol; pentacyclic triterpenoid; phytosterols | plant metabolite |
diploptene diploptene: biosynthesized in a cell-free system from Acetobacter pasteurianum in the presence of squalene. hop-22(29)-ene : A triterpene consisting of hopane having a C=C double bond at the 22(29)-position. | 2.38 | 2 | 0 | triterpene | |
zymosterol [no description available] | 2.02 | 1 | 0 | 3beta-sterol; cholestanoid | human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
brassinolide brassinolide: plant growth promoting steroidal lactone from rape pollen; RN given refers to (2alpha,3alpha,5alpha,22R,23R,24S)-isomer; structure in first source | 3.11 | 1 | 0 | 22-hydroxy steroid; 23-hydroxy steroid; 2alpha-hydroxy steroid; 3alpha-hydroxy steroid; brassinosteroid | plant growth stimulator; plant hormone |
celastrol [no description available] | 2.41 | 1 | 0 | monocarboxylic acid; pentacyclic triterpenoid | anti-inflammatory drug; antineoplastic agent; antioxidant; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor; Hsp90 inhibitor; metabolite |
3-hydroxydiploptene 3-hydroxydiploptene: biosynthesized from squalene or epoxy dihydrosqualene in cell-free system from Methylococcus capsulatus; RN given refers to (3beta)-isomer | 2.39 | 2 | 0 | | |
dammarenediol dammarenediol: RN refers to (3beta)-isomer; structure given in first source | 2.11 | 1 | 0 | | |
singlet oxygen Singlet Oxygen: An excited state of molecular oxygen generated photochemically or chemically. Singlet oxygen reacts with a variety of biological molecules such as NUCLEIC ACIDS; PROTEINS; and LIPIDS; causing oxidative damages. | 2.05 | 1 | 0 | chalcogen; monoatomic oxygen; nonmetal atom | macronutrient |
diplopterol diplopterol: biosyntheside from squalene in a cell-free system for Acetobacter pasteurianum; RN given refers to cpd without isomeric designation | 1.95 | 1 | 0 | hopanoid; pentacyclic triterpenoid; tertiary alcohol | plant metabolite |
maytenonic acid maytenonic acid: triterpene from Maytenus senegalensis | 2.41 | 1 | 0 | triterpenoid | metabolite |
campesterol campesterol: RN refers to (3beta,24R)-isomer; structure | 3.11 | 1 | 0 | 3beta-hydroxy-Delta(5)-steroid; 3beta-sterol; C28-steroid; phytosterols | mouse metabolite |
erythritol [no description available] | 2.1 | 1 | 0 | butane-1,2,3,4-tetrol | antioxidant; human metabolite; plant metabolite |
lanosterol [no description available] | 3.95 | 13 | 0 | 14alpha-methyl steroid; 3beta-sterol; tetracyclic triterpenoid | bacterial metabolite; human metabolite; mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite |
lupeol [no description available] | 2.44 | 2 | 0 | pentacyclic triterpenoid; secondary alcohol | anti-inflammatory drug; plant metabolite |
mevalonic acid Mevalonic Acid: A dihydroxy monocarboxylic acid and precursor in the biosynthetic pathway known as the mevalonate pathway, which produces terpenes and steroids that are vital for diverse cellular functions.. mevalonic acid : A racemate composed of equimolar amounts of (R)- and (S)-mevalonic acid.. (R)-mevalonic acid : The (R)-enantiomer of mevalonic acid. | 3.99 | 4 | 0 | 3,5-dihydroxy-3-methylpentanoic acid | |
euphol euphol: from Euphorbia acaulis Roxb.; structure given in first source | 2.02 | 1 | 0 | triterpenoid | |
ergosterol [no description available] | 2.41 | 2 | 0 | 3beta-hydroxy-Delta(5)-steroid; 3beta-sterol; ergostanoid; phytosterols | fungal metabolite; Saccharomyces cerevisiae metabolite |
bromochloroacetic acid Keratins: A class of fibrous proteins or scleroproteins that represents the principal constituent of EPIDERMIS; HAIR; NAILS; horny tissues, and the organic matrix of tooth ENAMEL. Two major conformational groups have been characterized, alpha-keratin, whose peptide backbone forms a coiled-coil alpha helical structure consisting of TYPE I KERATIN and a TYPE II KERATIN, and beta-keratin, whose backbone forms a zigzag or pleated sheet structure. alpha-Keratins have been classified into at least 20 subtypes. In addition multiple isoforms of subtypes have been found which may be due to GENE DUPLICATION.. bromochloroacetic acid : A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens is replaced by bromine while a second is replaced by chlorine. A low-melting (27.5-31.5degreeC), hygroscopic crystalline solid, it can be formed during the disinfection (by chlorination) of water that contains bromide ions and organic matter, so can occur in drinking water as a byproduct of the disinfection process. | 1.96 | 1 | 0 | 2-bromocarboxylic acid; monocarboxylic acid; organochlorine compound | |
glycosides [no description available] | 2.13 | 1 | 0 | | |
squalene Addavax: an oil-water nanoemulsion and adjuvant containing squalene, Tween 80, and sorbitane trioleate | 9.19 | 94 | 0 | triterpene | human metabolite; mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite |
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) | 1.98 | 1 | 0 | flavin adenine dinucleotide; vitamin B2 | cofactor; Escherichia coli metabolite; human metabolite; mouse metabolite; prosthetic group |
terbinafine [no description available] | 2.21 | 1 | 0 | acetylenic compound; allylamine antifungal drug; enyne; naphthalenes; tertiary amine | EC 1.14.13.132 (squalene monooxygenase) inhibitor; P450 inhibitor; sterol biosynthesis inhibitor |
nadp [no description available] | 2.21 | 1 | 0 | | |
dinoprostone prostaglandin E2 : Prostaglandin F2alpha in which the hydroxy group at position 9 has been oxidised to the corresponding ketone. Prostaglandin E2 is the most common and most biologically potent of mammalian prostaglandins. | 2.05 | 1 | 0 | prostaglandins E | human metabolite; mouse metabolite; oxytocic |
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. | 6.99 | 1 | 0 | chalcogen; nonmetal atom | macronutrient |
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. | 2.25 | 1 | 0 | 2-trans-abscisic acid | |
plastochromanol 8 plastochromanol 8: has antiproliferative activity against 3T3-L1 cells and anti-adipogenic activity; structure; plastochromanol 3 is gamma-tocotrienol | 2.05 | 1 | 0 | | |
2-aza-2-dihydrosqualene 2-aza-2-dihydrosqualene: 2,3-oxidosqualene cyclase inhibitor | 1.98 | 1 | 0 | | |
2,3,22,23-dioxidosqualene [no description available] | 2.67 | 3 | 0 | | |
beta-escin [no description available] | 4.95 | 6 | 0 | | |
phytosterols Phytosterols: A class of organic compounds known as sterols or STEROIDS derived from plants.. phytosterols : Sterols similar to cholesterol which occur in plants and vary only in carbon side chains and/or presence or absence of a double bond. | 3.52 | 2 | 0 | | |
parkeol parkeol: the triterpene precursor of saponins in sea cucmbers; structure given in first source. parkeol : A tetracyclic triterpenoid comprised of a lanostane skeleton which is 3beta-hydroxylated and has double bonds at the 9(11)- and 24-positions. | 2.21 | 1 | 0 | 3beta-hydroxy-4,4-dimethylsteroid; 3beta-sterol; tetracyclic triterpenoid | metabolite |
alisol b monoacetate alisol B 23-acetate: from Alisma orientale rhizome; structure in first source | 2.21 | 1 | 0 | triterpenoid | |
ubiquinone Ubiquinone: A lipid-soluble benzoquinone which is involved in ELECTRON TRANSPORT in mitochondrial preparations. The compound occurs in the majority of aerobic organisms, from bacteria to higher plants and animals. | 1.99 | 1 | 0 | | |
stearates Stearates: Salts and esters of the 18-carbon saturated, monocarboxylic acid--stearic acid. | 2.1 | 1 | 0 | | |
methyl jasmonate [no description available] | 2.91 | 3 | 0 | | |
piperidines Piperidines: A family of hexahydropyridines. | 1.99 | 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. | 7.36 | 2 | 0 | | |
cucurbitane cucurbitane: structure in first source. cucurbitane : A triterpene that is an isomer of lanostane obtained by migration of the methyl group from 10 to the 9beta position. | 2.13 | 1 | 0 | triterpene | |
gibberellins [no description available] | 2.25 | 1 | 0 | | |
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. | 2.13 | 1 | 0 | elemental hydrogen; elemental molecule; gas molecular entity | antioxidant; electron donor; food packaging gas; fuel; human metabolite |
isopentenyl pyrophosphate isopentenyl pyrophosphate: substrate for isopentenyl pyrophosphate isomerase; RN given refers to unlabeled cpd; a nonpeptide mycobacterial antigen that stimulates gamma delta T cells. isopentenyl diphosphate : A prenol phosphate comprising 3-methylbut-3-en-1-ol having an O-diphosphate substituent. | 2.1 | 1 | 0 | prenol phosphate | antigen; antioxidant; epitope; Escherichia coli metabolite; mouse metabolite; phosphoantigen |
ro 48-8071 Ro 48-8071: a cholesterol synthesis inhibitor; structure in first source. Ro 48-8071 : An aromatic ketone that is 2-fluoro-4'-bromobenzophenone in which the hydrogen at position 4 (meta to the fluoro group) is replaced by a 6-[methyl(prop-2-en-1-yl)amino]hexyl}oxy group. An inhibitor of lanosterol synthase. | 2.11 | 1 | 0 | aromatic ether; aromatic ketone; bromobenzenes; monofluorobenzenes; olefinic compound; tertiary amino compound | antineoplastic agent; EC 5.4.99.7 (lanosterol synthase) inhibitor |
etidronate Etidronic Acid: A diphosphonate which affects calcium metabolism. It inhibits ectopic calcification and slows down bone resorption and bone turnover.. etidronic acid : A 1,1-bis(phosphonic acid) that is (ethane-1,1-diyl)bis(phosphonic acid) having a hydroxy substituent at the 1-position. It inhibits the formation, growth, and dissolution of hydroxyapatite crystals by chemisorption to calcium phosphate surfaces. | 2.1 | 1 | 0 | 1,1-bis(phosphonic acid) | antineoplastic agent; bone density conservation agent; chelator |
risedronic acid Risedronic Acid: A pyridine and diphosphonic acid derivative that acts as a CALCIUM CHANNEL BLOCKER and inhibits BONE RESORPTION. | 2.1 | 1 | 0 | pyridines | |
cyclopentane Cyclopentanes: A group of alicyclic hydrocarbons with the general formula R-C5H9.. cyclopentanes : Cyclopentane and its derivatives formed by substitution. | 2.21 | 1 | 0 | cycloalkane; cyclopentanes; volatile organic compound | non-polar solvent |
oleanolic acid [no description available] | 3.39 | 6 | 0 | hydroxy monocarboxylic acid; pentacyclic triterpenoid | plant metabolite |
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. | 2.51 | 2 | 0 | benzenes; phenyl acetates | |
alkenes [no description available] | 2.08 | 1 | 0 | | |
lovastatin Lovastatin: A fungal metabolite isolated from cultures of Aspergillus terreus. The compound is a potent anticholesteremic agent. It inhibits 3-hydroxy-3-methylglutaryl coenzyme A reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES), which is the rate-limiting enzyme in cholesterol biosynthesis. It also stimulates the production of low-density lipoprotein receptors in the liver.. lovastatin : A fatty acid ester that is mevastatin carrying an additional methyl group on the carbobicyclic skeleton. It is used in as an anticholesteremic drug and has been found in fungal species such as Aspergillus terreus and Pleurotus ostreatus (oyster mushroom). | 2.1 | 1 | 0 | delta-lactone; fatty acid ester; hexahydronaphthalenes; polyketide; statin (naturally occurring) | anticholesteremic drug; antineoplastic agent; Aspergillus metabolite; prodrug |
beta-amyrin beta-amyrin: alpha-amyrin is also available; a 5 ring triterpene derived from oleanane that differs from alpha-amyrin in having the 29-carbon at the 20 position; RN given refers to (3 beta)-isomer. beta-amyrin : A pentacyclic triterpenoid that is oleanane substituted at the 3beta-position by a hydroxy group and containing a double bond between positions 12 and 13. It is one of the most commonly occurring triterpenoids in higher plants. | 3.56 | 7 | 0 | pentacyclic triterpenoid; secondary alcohol | Aspergillus metabolite; plant metabolite |
alpha-amyrin alpha-amyrin: beta-amyrin is also available; a 5 ring triterpene derived from taraxasterol that differs from beta-amyrin in having the 29-carbon at the 19 position. alpha-amyrin : A pentacyclic triterpenoid that is ursane which contains a double bond between positions 12 and 13 and in which the hydrogen at the 3beta position is substituted by a hydroxy group. | 2.25 | 1 | 0 | pentacyclic triterpenoid; secondary alcohol | |
cycloartenol [no description available] | 2.6 | 1 | 0 | 3beta-sterol; pentacyclic triterpenoid; phytosterols | plant metabolite |
dammarenediol dammarenediol: RN refers to (3beta)-isomer; structure given in first source | 2.13 | 1 | 0 | | |
cycloartane cycloartane : A triterpene that is lanostane in which there is a methylene bridge between the 5- and 9-positions. | 2.6 | 1 | 0 | triterpene | |
lanosterol [no description available] | 3.16 | 5 | 0 | 14alpha-methyl steroid; 3beta-sterol; tetracyclic triterpenoid | bacterial metabolite; human metabolite; mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite |
mevalonic acid Mevalonic Acid: A dihydroxy monocarboxylic acid and precursor in the biosynthetic pathway known as the mevalonate pathway, which produces terpenes and steroids that are vital for diverse cellular functions.. mevalonic acid : A racemate composed of equimolar amounts of (R)- and (S)-mevalonic acid.. (R)-mevalonic acid : The (R)-enantiomer of mevalonic acid. | 2.1 | 1 | 0 | 3,5-dihydroxy-3-methylpentanoic acid | |
ergosterol [no description available] | 2.1 | 1 | 0 | 3beta-hydroxy-Delta(5)-steroid; 3beta-sterol; ergostanoid; phytosterols | fungal metabolite; Saccharomyces cerevisiae metabolite |
squalene Addavax: an oil-water nanoemulsion and adjuvant containing squalene, Tween 80, and sorbitane trioleate | 6.83 | 31 | 0 | triterpene | human metabolite; mouse metabolite; plant metabolite; Saccharomyces cerevisiae metabolite |
fusidic acid Fusidic Acid: An antibiotic isolated from the fermentation broth of Fusidium coccineum. (From Merck Index, 11th ed). It acts by inhibiting translocation during protein synthesis.. fusidic acid : A steroid antibiotic that is isolated from the fermentation broth of Fusidium coccineum. | 2.05 | 1 | 0 | 11alpha-hydroxy steroid; 3alpha-hydroxy steroid; alpha,beta-unsaturated monocarboxylic acid; steroid acid; steroid antibiotic; sterol ester | EC 2.7.1.33 (pantothenate kinase) inhibitor; Escherichia coli metabolite; protein synthesis inhibitor |
helvolic acid helvolic acid: structure. helvolic acid : A steroid C-21 acid having a 29-nordammarane skeleton substituted with an acetoxy group at C-16 and oxo groups at C-3 and -7, with double bonds at C-1, -17(20) and -24. | 2.05 | 1 | 0 | 3-oxo-Delta(1) steroid; acetate ester; monocarboxylic acid; steroid acid | antibacterial agent; fungal metabolite; mycotoxin |
ginsenosides ginsenoside : Triterpenoid saponins with a dammarane-like skeleton originally isolated from ginseng (Panax) species. Use of the term has been extended to include semi-synthetic derivatives. | 2.13 | 1 | 0 | | |
24,25-epoxycholesterol 24,25-epoxycholesterol: Rn given refers to (3alpha,5beta)-isomer; structure given in first source. 24(S),25-epoxycholesterol : A 3beta-hydroxy-Delta(5)-steroid that is desmosterol in which the double bond at position 24-25 has been oxidised to the corresponding epoxide (the 24S diastereoisomer). It is an oxysterol agonist of the liver X receptor. | 2.1 | 1 | 0 | 3beta-hydroxy-Delta(5)-steroid; cholestanoid; epoxy steroid | liver X receptor agonist |
ubiquinone 9 ubiquinone 9: a form of coenzyme Q found in many foods; RN given refers to (all-E)-isomer | 2.1 | 1 | 0 | ubiquinones | antioxidant; human metabolite |
coenzyme q10 coenzyme Q10: Ubiquinone ring with a chain of 10 isoprene units; redox equilibrium with ubiqunol serving in mitochondrial inner membrane to transfer electrons; presence during reconstitution of acetylcholine receptor into phospholipid vesicles yields vesicles active in catalyzing carbamylcholine-sensitive Na+ flux; coenzyme Q10 depletion has been noted with use of statins. coenzyme Q10 : A ubiquinone having a side chain of 10 isoprenoid units. In the naturally occurring isomer, all isoprenyl double bonds are in the E- configuration. | 2.1 | 1 | 0 | ubiquinones | antioxidant; ferroptosis inhibitor; human metabolite |
squalestatin 1 squalestatin 1: structure given in first source; inhibits both mammalian and fungal squalene synthetase; from fungus Phoma sp (Coelomycetes). zaragozic acid A : A polyketide isolated from fungi that is a potent inhibitor of fungal and mammalian squalene synthase. | 2.1 | 1 | 0 | acetate ester; cyclic ketal; oxabicycloalkane; polyketide; tertiary alcohol; tricarboxylic acid | EC 2.5.1.21 (squalene synthase) inhibitor; fungal metabolite |
2,3,22,23-dioxidosqualene [no description available] | 2.1 | 1 | 0 | | |
beta-escin [no description available] | 2.89 | 3 | 0 | | |
clavaric acid clavaric acid: inhibits farnesyl-protein transferase; isolated from Clavariadelphus truncatus; structure in first source | 2.05 | 1 | 0 | | |
oleanane oleanane: from the aerial roots of Ficus microcarpa; structure in first source | 2.6 | 1 | 0 | terpenoid fundamental parent; triterpene | |
alisol b monoacetate alisol B 23-acetate: from Alisma orientale rhizome; structure in first source | 2.21 | 1 | 0 | triterpenoid | |
ubiquinone Ubiquinone: A lipid-soluble benzoquinone which is involved in ELECTRON TRANSPORT in mitochondrial preparations. The compound occurs in the majority of aerobic organisms, from bacteria to higher plants and animals. | 2.1 | 1 | 0 | | |
methyl jasmonate [no description available] | 2.21 | 1 | 0 | | |
lupane lupane: has antineoplastic activity; structure in first source | 2.15 | 1 | 0 | | |