| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
acetone
methyl ketone : A ketone of formula RC(=O)CH3 (R =/= H). | 2.47 | 2 | 0 | ketone body;
methyl ketone;
propanones;
volatile organic compound | EC 3.5.1.4 (amidase) inhibitor;
human metabolite;
polar aprotic solvent |
aminoacetone
aminoacetone: RN given refers to parent cpd. aminoacetone : A propanone consisting of acetone having an amino group at the 1-position. | 2.1 | 1 | 0 | methyl ketone;
propanones | Escherichia coli metabolite;
mouse metabolite |
ammonium hydroxide
azane : Saturated acyclic nitrogen hydrides having the general formula NnHn+2. | 1.98 | 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 |
cadaverine
[no description available] | 2.37 | 2 | 0 | alkane-alpha,omega-diamine | Daphnia magna metabolite;
Escherichia coli metabolite;
mouse metabolite;
plant metabolite |
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). | 2.11 | 1 | 0 | alkane;
gas molecular entity;
mononuclear parent hydride;
one-carbon compound | bacterial metabolite;
fossil fuel;
greenhouse gas |
glycine
[no description available] | 4.73 | 30 | 0 | alpha-amino acid;
amino acid zwitterion;
proteinogenic amino acid;
serine family amino acid | EC 2.1.2.1 (glycine hydroxymethyltransferase) inhibitor;
fundamental metabolite;
hepatoprotective agent;
micronutrient;
neurotransmitter;
NMDA receptor agonist;
nutraceutical |
carbonic acid
Carbonic Acid: Carbonic acid (H2C03). The hypothetical acid of carbon dioxide and water. It exists only in the form of its salts (carbonates), acid salts (hydrogen carbonates), amines (carbamic acid), and acid chlorides (carbonyl chloride). (From Grant & Hackh's Chemical Dictionary, 5th ed) | 1.98 | 1 | 0 | carbon oxoacid;
chalcocarbonic acid | mouse metabolite |
histamine
[no description available] | 1.96 | 1 | 0 | aralkylamino compound;
imidazoles | human metabolite;
mouse metabolite;
neurotransmitter |
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. | 2.25 | 1 | 0 | elemental hydrogen;
elemental molecule;
gas molecular entity | antioxidant;
electron donor;
food packaging gas;
fuel;
human metabolite |
niacinamide
nicotinamide : A pyridinecarboxamide that is pyridine in which the hydrogen at position 3 is replaced by a carboxamide group. | 2.25 | 1 | 0 | pyridine alkaloid;
pyridinecarboxamide;
vitamin B3 | anti-inflammatory agent;
antioxidant;
cofactor;
EC 2.4.2.30 (NAD(+) ADP-ribosyltransferase) inhibitor;
EC 3.5.1.98 (histone deacetylase) inhibitor;
Escherichia coli metabolite;
geroprotector;
human urinary metabolite;
metabolite;
mouse metabolite;
neuroprotective agent;
Saccharomyces cerevisiae metabolite;
Sir2 inhibitor |
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. | 1.94 | 1 | 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 |
putrescine
[no description available] | 1.98 | 1 | 0 | alkane-alpha,omega-diamine | antioxidant;
fundamental metabolite |
pyridoxal
[no description available] | 2.04 | 1 | 0 | hydroxymethylpyridine;
methylpyridines;
monohydroxypyridine;
pyridinecarbaldehyde;
vitamin B6 | cofactor;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
sarcosine
cocobetaine: N-alkyl-betaine; cause of shampoo dermatitis | 2.88 | 4 | 0 | N-alkylglycine zwitterion;
N-alkylglycine;
N-methyl-amino acid;
N-methylglycines | Escherichia coli metabolite;
glycine receptor agonist;
glycine transporter 1 inhibitor;
human metabolite;
mouse metabolite |
spermidine
[no description available] | 1.98 | 1 | 0 | polyazaalkane;
triamine | autophagy inducer;
fundamental metabolite;
geroprotector |
spermine
[no description available] | 1.98 | 1 | 0 | polyazaalkane;
tetramine | antioxidant;
fundamental metabolite;
immunosuppressive agent |
guanidine
Guanidine: A strong organic base existing primarily as guanidium ions at physiological pH. It is found in the urine as a normal product of protein metabolism. It is also used in laboratory research as a protein denaturant. (From Martindale, the Extra Pharmacopoeia, 30th ed and Merck Index, 12th ed) It is also used in the treatment of myasthenia and as a fluorescent probe in HPLC.. guanidine : An aminocarboxamidine, the parent compound of the guanidines. | 1.98 | 1 | 0 | carboxamidine;
guanidines;
one-carbon compound | |
lidocaine
Lidocaine: A local anesthetic and cardiac depressant used as an antiarrhythmia agent. Its actions are more intense and its effects more prolonged than those of PROCAINE but its duration of action is shorter than that of BUPIVACAINE or PRILOCAINE.. lidocaine : The monocarboxylic acid amide resulting from the formal condensation of N,N-diethylglycine with 2,6-dimethylaniline. | 1.98 | 1 | 0 | benzenes;
monocarboxylic acid amide;
tertiary amino compound | anti-arrhythmia drug;
drug allergen;
environmental contaminant;
local anaesthetic;
xenobiotic |
monodansylcadaverine
monodansylcadaverine: inhibits cross linkage of fibrin. monodansylcadaverine : A sulfonamide obtained by formal condensation of the sulfo group of 5-(dimethylamino)naphthalene-1-sulfonic acid with one of the amino groups of cadaverine. | 2.37 | 2 | 0 | aminonaphthalene;
primary amino compound;
sulfonamide;
tertiary amino compound | EC 2.3.2.13 (protein-glutamine gamma-glutamyltransferase) inhibitor;
fluorochrome;
protective agent |
qx-222
QX-222: amphipathic amine; RN given refers to ion; structure | 1.98 | 1 | 0 | amino acid amide | |
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. | 2.83 | 3 | 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 |
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. | 1.98 | 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. | 2.02 | 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 |
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. | 1.98 | 1 | 0 | lactose | |
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. | 1.96 | 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 |
ornithine
Ornithine: An amino acid produced in the urea cycle by the splitting off of urea from arginine.. ornithine : An alpha-amino acid that is pentanoic acid bearing two amino substituents at positions 2 and 5. | 1.98 | 1 | 0 | non-proteinogenic L-alpha-amino acid;
ornithine | algal metabolite;
hepatoprotective agent;
mouse metabolite |
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. | 1.98 | 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 |
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. | 1.98 | 1 | 0 | arginine;
glutamine family amino acid;
L-alpha-amino acid;
proteinogenic amino acid | biomarker;
Escherichia coli metabolite;
micronutrient;
mouse metabolite;
nutraceutical |
methylamine
methyl group : An alkyl group that is the univalent group derived from methane by removal of a hydrogen atom. | 1.96 | 1 | 0 | methylamines;
one-carbon compound;
primary aliphatic amine | mouse metabolite |
2-diethylaminoethanol
2-diethylaminoethanol: RN given refers to unlabeled parent cpd. 2-diethylaminoethanol : A member of the class of ethanolamines that is aminoethanol in which the hydrogens of the amino group are replaced by ethyl groups. | 1.95 | 1 | 0 | ethanolamines;
primary alcohol;
tertiary amino compound | |
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. | 7.11 | 1 | 0 | pyrrole;
secondary amine | |
n-butyl acrylate
butyl acrylate : An acrylate ester obtained by the formal condensation of the hydroxy group of butan-1-ol with the carboxy group of acrylic acid. | 2.02 | 1 | 0 | acrylate ester | |
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. | 2.1 | 1 | 0 | diazine;
pyrazines | Daphnia magna metabolite |
phenylglyoxylic acid
phenylglyoxylic acid: styrene metabolite. phenylglyoxylic acid : A 2-oxo monocarboxylic acid that is glyoxylic acid in which the aldehyde hydrogen is substituted by a phenyl group. | 2.04 | 1 | 0 | 2-oxo monocarboxylic acid | biomarker;
human xenobiotic metabolite |
glycine ethyl ester
glycine ethyl ester: RN given refers to parent cpd | 1.98 | 1 | 0 | | |
ethyldimethylaminopropyl carbodiimide
Ethyldimethylaminopropyl Carbodiimide: Carbodiimide cross-linking reagent. | 2.89 | 4 | 0 | | |
manganese
Manganese: A trace element with atomic symbol Mn, atomic number 25, and atomic weight 54.94. It is concentrated in cell mitochondria, mostly in the pituitary gland, liver, pancreas, kidney, and bone, influences the synthesis of mucopolysaccharides, stimulates hepatic synthesis of cholesterol and fatty acids, and is a cofactor in many enzymes, including arginase and alkaline phosphatase in the liver. (From AMA Drug Evaluations Annual 1992, p2035). manganese(4+) : A manganese cation that is monoatomic and has a formal charge of +4. | 2 | 1 | 0 | elemental manganese;
manganese group element atom | Escherichia coli metabolite;
micronutrient |
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. | 1.95 | 1 | 0 | elemental mercury;
zinc group element atom | neurotoxin |
deuterium
Deuterium: The stable isotope of hydrogen. It has one neutron and one proton in the nucleus. | 2.42 | 2 | 0 | dihydrogen | |
chlorine
Chlorine: An element with atomic symbol Cl, atomic number 17, and atomic weight 35, and member of the halogen family. | 1.95 | 1 | 0 | diatomic chlorine;
gas molecular entity | bleaching agent |
tetradecanoylphorbol acetate
Tetradecanoylphorbol Acetate: A phorbol ester found in CROTON OIL with very effective tumor promoting activity. It stimulates the synthesis of both DNA and RNA.. phorbol ester : Esters of phorbol, originally found in croton oil (from Croton tiglium, of the family Euphorbiaceae). A number of phorbol esters possess activity as tumour promoters and activate the mechanisms associated with cell growth. Some of these are used in experiments as activators of protein kinase C.. phorbol 13-acetate 12-myristate : A phorbol ester that is phorbol in which the hydroxy groups at the cyclopropane ring juction (position 13) and the adjacent carbon (position 12) have been converted into the corresponding acetate and myristate esters. It is a major active constituent of the seed oil of Croton tiglium. It has been used as a tumour promoting agent for skin carcinogenesis in rodents and is associated with increased cell proliferation of malignant cells. However its function is controversial since a decrease in cell proliferation has also been observed in several cancer cell types. | 1.97 | 1 | 0 | acetate ester;
diester;
phorbol ester;
tertiary alpha-hydroxy ketone;
tetradecanoate ester | antineoplastic agent;
apoptosis inducer;
carcinogenic agent;
mitogen;
plant metabolite;
protein kinase C agonist;
reactive oxygen species generator |
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. | 1.94 | 1 | 0 | benzenes;
phenyl acetates | |
2,5-dimethylpyrazine
[no description available] | 2.1 | 1 | 0 | pyrazines | |
1,4-dioxane
1,4-dioxane: dehydrating agent; polar solvent miscible both with water & most organic solvents. dioxane : Any member of the class of dioxanes that is a cyclohexane in which two carbon atoms are replaced by oxygen atoms.. 1,4-dioxane : A dioxane with oxygen atoms at positions 1 and 4. | 1.95 | 1 | 0 | dioxane;
volatile organic compound | carcinogenic agent;
metabolite;
NMR chemical shift reference compound;
non-polar solvent |
alkenes
[no description available] | 2.02 | 1 | 0 | | |
leucine methyl ester
leucine methyl ester: RN given refers to (L-Leu)-isomer. methyl L-leucinate : The methyl ester of L-leucine. | 2 | 1 | 0 | alpha-amino acid ester;
L-leucine derivative;
methyl ester | |
tyrosine methyl ester
tyrosine methyl ester: RN given refers to (L)-isomer. methyl L-tyrosinate : An L-tyrosyl ester that is the methyl ester of L-tyrosine. | 2 | 1 | 0 | L-tyrosyl ester;
methyl ester | |
isoleucine methyl ester
[no description available] | 2 | 1 | 0 | | |
alanine methyl ester
alanine methyl ester: RN refers to (L-Ala)-isomer | 2.74 | 3 | 0 | | |
sarcosine methyl ester
sarcosine methyl ester: RN given refers to parent cpd | 2.88 | 4 | 0 | | |
aminomethanesulfonic acid
[no description available] | 2 | 1 | 0 | | |
glycylsarcosine
glycylsarcosine : A dipeptide obtained by formal condensation of the carboxy group of glycine with the amino group of sarcosine. | 2 | 1 | 0 | dipeptide zwitterion;
dipeptide | |
n-succinimidyl propionate
[no description available] | 2.74 | 3 | 0 | | |
carbene
carbene: electrically neutral species H2C: and its derivatives, in which the carbon is covalently bonded to two univalent groups of any kind or a divalent group and bears two nonbonding electrons; carbene is the name of the parent hydride :CH2 ; hence, the name dichlorocarbene for :CCl2. However, names for acyclic and cyclic hydrocarbons containing one or more divalent carbon atoms are derived from the name of the corresponding all-4-hydrocarbon using the suffix -ylidene; methylene carbene also available. carbene : The electrically neutral species H2C(2.) and its derivatives, in which the carbon is covalently bonded to two univalent groups of any kind or a divalent group and bears two nonbonding electrons, which may be spin-paired (singlet state) or spin-non-paired (triplet state). | 7.11 | 1 | 0 | carbene;
methanediyl | |
phenylalanine methyl ester
phenylalanine methyl ester: RN given refers to (L)-isomer. methyl L-phenylalaninate : An alpha-amino acid ester that is the methyl ester of L-phenylalanine. | 2 | 1 | 0 | alpha-amino acid ester;
L-phenylalanine derivative | |
serine methyl ester
serine methyl ester: RN given for (HCl, (L)-isomer) | 2 | 1 | 0 | | |
alpha-chymotrypsin
Chymotrypsin: A serine endopeptidase secreted by the pancreas as its zymogen, CHYMOTRYPSINOGEN and carried in the pancreatic juice to the duodenum where it is activated by TRYPSIN. It selectively cleaves aromatic amino acids on the carboxyl side. | 6.94 | 1 | 0 | | |
cesium
Cesium: A member of the alkali metals. It has an atomic symbol Cs, atomic number 50, and atomic weight 132.91. Cesium has many industrial applications, including the construction of atomic clocks based on its atomic vibrational frequency. | 1.98 | 1 | 0 | alkali metal atom | |
cobrotoxin
Cobra Neurotoxin Proteins: Toxins, contained in cobra (Naja) venom that block cholinergic receptors; two specific proteins have been described, the small (short, Type I) and the large (long, Type II) which also exist in other Elapid venoms. | 1.98 | 1 | 0 | | |
toxin iii (anemonia sulcata)
toxin III (Anemonia sulcata): polypeptide with 27 amino acid residues; see also record for cytolysin III (Stoichactis helianthus) | 1.97 | 1 | 0 | | |
muramidase
Muramidase: A basic enzyme that is present in saliva, tears, egg white, and many animal fluids. It functions as an antibacterial agent. The enzyme catalyzes the hydrolysis of 1,4-beta-linkages between N-acetylmuramic acid and N-acetyl-D-glucosamine residues in peptidoglycan and between N-acetyl-D-glucosamine residues in chitodextrin. EC 3.2.1.17. | 2 | 1 | 0 | | |
valacyclovir
Valacyclovir: A prodrug of acyclovir that is used in the treatment of HERPES ZOSTER and HERPES SIMPLEX VIRUS INFECTION of the skin and mucous membranes, including GENITAL HERPES. | 2 | 1 | 0 | L-valyl ester | antiviral drug |