| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
ammonium hydroxide
azane : Saturated acyclic nitrogen hydrides having the general formula NnHn+2. | 2.08 | 1 | 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 |
methane
Methane: The simplest saturated hydrocarbon. It is a colorless, flammable gas, slightly soluble in water. It is one of the chief constituents of natural gas and is formed in the decomposition of organic matter. (Grant & Hackh's Chemical Dictionary, 5th ed). methane : A one-carbon compound in which the carbon is attached by single bonds to four hydrogen atoms. It is a colourless, odourless, non-toxic but flammable gas (b.p. -161degreeC). | 2.05 | 1 | 0 | alkane;
gas molecular entity;
mononuclear parent hydride;
one-carbon compound | bacterial metabolite;
fossil fuel;
greenhouse gas |
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. | 2.04 | 1 | 0 | elemental hydrogen;
elemental molecule;
gas molecular entity | antioxidant;
electron donor;
food packaging gas;
fuel;
human 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. | 2.75 | 3 | 0 | alkyl alcohol;
one-carbon compound;
primary alcohol;
volatile organic compound | amphiprotic solvent;
Escherichia coli metabolite;
fuel;
human metabolite;
mouse metabolite;
Mycoplasma genitalium metabolite |
nickel
Nickel: A trace element with the atomic symbol Ni, atomic number 28, and atomic weight 58.69. It is a cofactor of the enzyme UREASE.. nickel ion : A nickel atom having a net electric charge.. nickel atom : Chemical element (nickel group element atom) with atomic number 28. | 2.48 | 2 | 0 | metal allergen;
nickel group element atom | epitope;
micronutrient |
nitrates
Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical. | 6.37 | 49 | 0 | monovalent inorganic anion;
nitrogen oxoanion;
reactive nitrogen species | |
nitric acid
Nitric Acid: Nitric acid (HNO3). A colorless liquid that is used in the manufacture of inorganic and organic nitrates and nitro compounds for fertilizers, dye intermediates, explosives, and many different organic chemicals. Continued exposure to vapor may cause chronic bronchitis; chemical pneumonitis may occur. (From Merck Index, 11th ed). nitric acid : A nitrogen oxoacid of formula HNO3 in which the nitrogen atom is bonded to a hydroxy group and by equivalent bonds to the remaining two oxygen atoms. | 3.59 | 2 | 0 | nitrogen oxoacid | protic solvent;
reagent |
hydroxide ion
[no description available] | 2.6 | 1 | 0 | oxygen hydride | mouse metabolite |
propionic acid
propionic acid : A short-chain saturated fatty acid comprising ethane attached to the carbon of a carboxy group. | 2.13 | 1 | 0 | saturated fatty acid;
short-chain fatty acid | antifungal drug |
1,10-phenanthroline
1,10-phenanthroline: RN given refers to parent cpd; inhibits Zn-dependent metalloproteinases | 2.13 | 1 | 0 | phenanthroline | EC 2.7.1.1 (hexokinase) inhibitor;
EC 3.4.19.3 (pyroglutamyl-peptidase I) inhibitor |
diclofenac
Diclofenac: A non-steroidal anti-inflammatory agent (NSAID) with antipyretic and analgesic actions. It is primarily available as the sodium salt.. diclofenac : A monocarboxylic acid consisting of phenylacetic acid having a (2,6-dichlorophenyl)amino group at the 2-position. | 2.07 | 1 | 0 | amino acid;
aromatic amine;
dichlorobenzene;
monocarboxylic acid;
secondary amino compound | antipyretic;
drug allergen;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
environmental contaminant;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
xenobiotic |
propranolol
Propranolol: A widely used non-cardioselective beta-adrenergic antagonist. Propranolol has been used for MYOCARDIAL INFARCTION; ARRHYTHMIA; ANGINA PECTORIS; HYPERTENSION; HYPERTHYROIDISM; MIGRAINE; PHEOCHROMOCYTOMA; and ANXIETY but adverse effects instigate replacement by newer drugs.. propranolol : A propanolamine that is propan-2-ol substituted by a propan-2-ylamino group at position 1 and a naphthalen-1-yloxy group at position 3. | 2.13 | 1 | 0 | naphthalenes;
propanolamine;
secondary amine | anti-arrhythmia drug;
antihypertensive agent;
anxiolytic drug;
beta-adrenergic antagonist;
environmental contaminant;
human blood serum metabolite;
vasodilator agent;
xenobiotic |
sulfanilamide
[no description available] | 2.17 | 1 | 0 | substituted aniline;
sulfonamide antibiotic;
sulfonamide | antibacterial agent;
drug allergen;
EC 4.2.1.1 (carbonic anhydrase) inhibitor |
estrone
Hydroxyestrones: Estrone derivatives substituted with one or more hydroxyl groups in any position. They are important metabolites of estrone and other estrogens. | 2.06 | 1 | 0 | 17-oxo steroid;
3-hydroxy steroid;
phenolic steroid;
phenols | antineoplastic agent;
bone density conservation agent;
estrogen;
human metabolite;
mouse metabolite |
2,3,4,6-tetrachlorophenol
2,3,4,6-tetrachlorophenol: RN given refers to parent cpd; see also record for tetrachlorophenol with locants for chloro groups not specified. 2,3,4,6-tetrachlorophenol : A tetrachlorophenol in which the chlorines are located at positions 2, 3, 4, and 6. | 2.05 | 1 | 0 | tetrachlorophenol | xenobiotic metabolite |
methionine
Methionine: A sulfur-containing essential L-amino acid that is important in many body functions.. methionine : A sulfur-containing amino acid that is butyric acid bearing an amino substituent at position 2 and a methylthio substituent at position 4. | 2.17 | 1 | 0 | aspartate family amino acid;
L-alpha-amino acid;
methionine zwitterion;
methionine;
proteinogenic amino acid | antidote to paracetamol poisoning;
human metabolite;
micronutrient;
mouse metabolite;
nutraceutical |
2,4,6-trichlorophenol
[no description available] | 2.05 | 1 | 0 | trichlorophenol | carcinogenic agent |
n-vinyl-2-pyrrolidinone
N-vinyl-2-pyrrolidinone: monomer of POVIDONE; structure given in first source | 2.03 | 1 | 0 | pyrrolidin-2-ones | |
ethylene dimethacrylate
ethylene glycol dimethacrylate : The enoate ester that is the 1,2-bis(methacryloyl) derivative of ethylene glycol. | 2.13 | 1 | 0 | enoate ester | allergen;
cross-linking reagent;
polymerisation monomer |
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. | 2.06 | 1 | 0 | aldehyde;
furans | Maillard reaction product;
metabolite |
2-aminothiophenol
2-aminothiophenol: RN given refers to parent cpd; structure. 2-aminothiophenol : An aryl thiol that is thiophenol substituted at position 2 by an amino group. | 2.1 | 1 | 0 | aryl thiol;
substituted aniline | plant metabolite |
isoxazoles
Isoxazoles: Azoles with an OXYGEN and a NITROGEN next to each other at the 1,2 positions, in contrast to OXAZOLES that have nitrogens at the 1,3 positions.. isoxazole : A monocyclic heteroarene with a structure consisting of a 5-membered ring containing three carbon atoms and an oxygen and nitrogen atom adjacent to each other. It is the parent of the class of isoxazoles.. isoxazoles : Oxazoles in which the N and O atoms are adjacent. | 2.11 | 1 | 0 | isoxazoles;
mancude organic heteromonocyclic parent;
monocyclic heteroarene | |
hydrazine
diamine : Any polyamine that contains two amino groups. | 2.37 | 2 | 0 | azane;
hydrazines | EC 4.3.1.10 (serine-sulfate ammonia-lyase) inhibitor |
limestone
Calcium Carbonate: Carbonic acid calcium salt (CaCO3). An odorless, tasteless powder or crystal that occurs in nature. It is used therapeutically as a phosphate buffer in hemodialysis patients and as a calcium supplement.. calcium carbonate : A calcium salt with formula CCaO3. | 2.21 | 1 | 0 | calcium salt;
carbonate salt;
inorganic calcium salt;
one-carbon compound | antacid;
fertilizer;
food colouring;
food firming agent |
indoline
indoline: structure given in first source | 2.25 | 1 | 0 | indoles | |
trimesic acid
trimesic acid: RN given refers to parent cpd. benzene-1,3,5-tricarboxylic acid : A tricarboxylic acid that consists of benzene substituted by carboxy groups at positions 1, 3 and 5. | 2.06 | 1 | 0 | benzoic acids;
tricarboxylic acid | |
mercury
Mercury: A silver metallic element that exists as a liquid at room temperature. It has the atomic symbol Hg (from hydrargyrum, liquid silver), atomic number 80, and atomic weight 200.59. Mercury is used in many industrial applications and its salts have been employed therapeutically as purgatives, antisyphilitics, disinfectants, and astringents. It can be absorbed through the skin and mucous membranes which leads to MERCURY POISONING. Because of its toxicity, the clinical use of mercury and mercurials is diminishing.. mercury(0) : Elemental mercury of oxidation state zero. | 2.6 | 1 | 0 | elemental mercury;
zinc group element atom | neurotoxin |
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. | 2.21 | 1 | 0 | cadmium molecular entity;
zinc group element atom | |
cupric chloride
cupric chloride: RN given refers to unlabeled parent cpd. copper(II) chloride : An inorganic chloride of copper in which the metal is in the +2 oxidation state. | 2.81 | 3 | 0 | copper molecular entity;
inorganic chloride | EC 5.3.3.5 (cholestenol Delta-isomerase) inhibitor |
nickel chloride
nickel chloride: RN given refers to cpd with MF of Ni-Cl2. nickel dichloride : A compound of nickel and chloride in which the ratio of nickel (in the +2 oxidation state) to chloride is 1:2. | 2.05 | 1 | 0 | nickel coordination entity | calcium channel blocker;
hapten |
ferrous sulfate
ferrous sulfate: Ferro-Gradumet is ferrous sulfate in controlled release form; RN given refers to Fe(+2)[1:1] salt. iron(2+) sulfate (anhydrous) : A compound of iron and sulfate in which the ratio of iron(2+) to sulfate ions is 1:1. Various hydrates occur naturally - most commonly the heptahydrate, which loses water to form the tetrahydrate at 57degreeC and the monohydrate at 65degreeC. | 2.03 | 1 | 0 | iron molecular entity;
metal sulfate | reducing agent |
copper sulfate
Copper Sulfate: A sulfate salt of copper. It is a potent emetic and is used as an antidote for poisoning by phosphorus. It also can be used to prevent the growth of algae.. copper(II) sulfate : A metal sulfate compound having copper(2+) as the metal ion. | 2.91 | 4 | 0 | metal sulfate | emetic;
fertilizer;
sensitiser |
silver nitrate
Silver Nitrate: A silver salt with powerful germicidal activity. It has been used topically to prevent OPHTHALMIA NEONATORUM. | 2.68 | 3 | 0 | inorganic nitrate salt;
silver salt | astringent |
zinc nitrate
[no description available] | 2.76 | 3 | 0 | | |
lead nitrate
lead nitrate: RN given refers to unspecified lead nitrate | 2.48 | 2 | 0 | inorganic nitrate salt;
lead coordination entity | |
cadmium nitrate
cadmium nitrate: RN given refers to parent cpd. cadmium nitrate : An inorganic nitrate salt having Cd(2+) as the counterion. | 2.48 | 2 | 0 | cadmium salt;
inorganic nitrate salt | carcinogenic agent;
genotoxin;
hepatotoxic agent |
ferric nitrate
ferric nitrate: RN given refers to Fe(+3) salt | 2.17 | 1 | 0 | | |
nickel nitrate
nickel nitrate: RN given refers to cpd with MF of Ni-(HNO3)2 | 2.11 | 1 | 0 | | |
copper(ii) perchlorate
copper(II) perchlorate: RN given refers to parent cpd; structure given in first source | 2.07 | 1 | 0 | | |
stannic oxide
tin dioxide : A tin oxide compound consisting of tin(IV) covalently bound to two oxygen atoms. | 2.07 | 1 | 0 | tin oxide | |
alkenes
[no description available] | 2.11 | 1 | 0 | | |
vanadyl sulfate
[no description available] | 2.06 | 1 | 0 | metal sulfate;
vanadium coordination entity | |
1,7-phenanthroline
[no description available] | 2.13 | 1 | 0 | phenanthroline | |
2,5-diformylfuran
2,5-diformylfuran: structure in first source. 2,5-diformylfuran : A member of the class of furans carrying two formyl substituents at positions 2 and 5. | 2.06 | 1 | 0 | arenecarbaldehyde;
dialdehyde;
furans | |
homocysteine
Homocysteine: A thiol-containing amino acid formed by a demethylation of METHIONINE.. homocysteine : A sulfur-containing amino acid consisting of a glycine core with a 2-mercaptoethyl side-chain.. L-homocysteine : A homocysteine that has L configuration. | 2.25 | 1 | 0 | amino acid zwitterion;
homocysteine;
serine family amino acid | fundamental metabolite;
mouse metabolite |
cobalt
Cobalt: A trace element that is a component of vitamin B12. It has the atomic symbol Co, atomic number 27, and atomic weight 58.93. It is used in nuclear weapons, alloys, and pigments. Deficiency in animals leads to anemia; its excess in humans can lead to erythrocytosis.. cobalt(1+) : A monovalent inorganic cation obtained from cobalt.. cobalt atom : A cobalt group element atom that has atomic number 27. | 2.1 | 1 | 0 | cobalt group element atom;
metal allergen | micronutrient |
cyanates
Cyanates: Organic salts of cyanic acid containing the -OCN radical.. cyanates : Salts and esters of cyanic acid, HOC#N; compounds carrying the cyanate functional group -O-C#N.. isocyanates : Organonitrogen compounds that are derivatives of isocyanic acid; compounds containing the isocyanate functional group -N=C=O (as opposed to the cyanate group, -O-C#N). | 2.06 | 1 | 0 | | |
hydroxyl radical
Hydroxyl Radical: The univalent radical OH. Hydroxyl radical is a potent oxidizing agent. | 2.17 | 1 | 0 | oxygen hydride;
oxygen radical;
reactive oxygen species | |
cupric hydroxide
copper hydroxide: used as an antifungal agent | 2.76 | 2 | 0 | organic molecular entity | |
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. | 2.06 | 1 | 0 | arenecarbaldehyde;
furans;
primary alcohol | indicator;
Maillard reaction product |
1,1-diphenyl-2-picrylhydrazyl
1,1-diphenyl-2-picrylhydrazyl: A diphenyl picrate; the ability to decolorize this stable radical indicates reactivity of tested compounds (Banda, Anal Chem 46:1772-7 1974) | 2.25 | 1 | 0 | | |
lead
Lead: A soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.2, symbol Pb. | 2.48 | 2 | 0 | carbon group element atom;
elemental lead;
metal atom | neurotoxin |
aluminum
Aluminum: A metallic element that has the atomic number 13, atomic symbol Al, and atomic weight 26.98. | 2.08 | 1 | 0 | boron group element atom;
elemental aluminium;
metal atom | |
cysteine
Cysteine: A thiol-containing non-essential amino acid that is oxidized to form CYSTINE.. L-cysteinium : The L-enantiomer of cysteinium.. cysteine : A sulfur-containing amino acid that is propanoic acid with an amino group at position 2 and a sulfanyl group at position 3. | 2.61 | 2 | 0 | cysteinium | fundamental metabolite |
digalactosyldiacylglycerol
digalactosyldiacylglycerol: two Galactoses bound to diacylglycerol; the mono Gal MGDG is also available; constitutes 20% of plant chloroplast lipids; see also 1,2-distearoyldigalactosyldiglyceride | 2.07 | 1 | 0 | | |
nystatin a1
Nystatin: Macrolide antifungal antibiotic complex produced by Streptomyces noursei, S. aureus, and other Streptomyces species. The biologically active components of the complex are nystatin A1, A2, and A3.. nystatin : A heterogeneous mixture of polyene compounds produced by cultures of Streptomyces noursei. It mainly consists of three biologically active components designated nystatin A1, nystatin A2, and nystatin A3. It is used to treat oral and dermal fungal infections.. nystatin A1 : A polyene macrolide antibiotic; part of the nystatin complex produced by several Streptomyces species. It is an antifungal antibiotic used for the treatment of topical fungal infections caused by a broad spectrum of fungal pathogens comprising yeast-like and filamentous species. | 2.06 | 1 | 0 | nystatins | |
cellulose
DEAE-Cellulose: Cellulose derivative used in chromatography, as ion-exchange material, and for various industrial applications. | 2.04 | 1 | 0 | glycoside | |
phosphatidylcholines
Phosphatidylcholines: Derivatives of PHOSPHATIDIC ACIDS in which the phosphoric acid is bound in ester linkage to a CHOLINE moiety. | 2.07 | 1 | 0 | 1,2-diacyl-sn-glycero-3-phosphocholine | |
cufe2o4
[no description available] | 2.17 | 1 | 0 | | |
(9R)-9-chloro-11,17-dihydroxy-17-(2-hydroxy-1-oxoethyl)-10,13,16-trimethyl-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-3-one
Beclomethasone: An anti-inflammatory, synthetic glucocorticoid. It is used topically as an anti-inflammatory agent and in aerosol form for the treatment of ASTHMA.. beclomethasone : A 17alpha-hydroxy steroid that is prednisolone in which the hydrogens at the 9alpha and 16beta positions are substituted by a chlorine and a methyl group, respectively. | 2.06 | 1 | 0 | 21-hydroxy steroid | |
chitosan
[no description available] | 2.1 | 1 | 0 | | |
methyl orange
methyl orange: indictor of pH with strong acids & bases; also used as reagent to form ion pairs with, and thereby isolate, certain compounds from biological material; minor descriptor (75-86); on-line & INDEX MEDICUS search AZO COMPOUNDS (75-86); file maintained to Azo cpds | 2.1 | 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. | 2.03 | 1 | 0 | ascorbic acid;
vitamin C | coenzyme;
cofactor;
flour treatment agent;
food antioxidant;
food colour retention agent;
geroprotector;
plant metabolite;
skin lightening agent |
tetracycline
Tetracycline: A naphthacene antibiotic that inhibits AMINO ACYL TRNA binding during protein synthesis.. tetracycline : A broad-spectrum polyketide antibiotic produced by the Streptomyces genus of actinobacteria. | 2.04 | 1 | 0 | | |
guanosine
ribonucleoside : Any nucleoside where the sugar component is D-ribose. | 2.03 | 1 | 0 | guanosines;
purines D-ribonucleoside | fundamental metabolite |
metallothionein
Metallothionein: A low-molecular-weight (approx. 10 kD) protein occurring in the cytoplasm of kidney cortex and liver. It is rich in cysteinyl residues and contains no aromatic amino acids. Metallothionein shows high affinity for bivalent heavy metals. | 2.05 | 1 | 0 | | |