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. | 3.08 | 5 | 0 | monocarboxylic acid | antibacterial agent;
astringent;
metabolite;
protic solvent;
solvent |
formamide
formimidic acid : A carboximidic acid that is formic acid in which the carbonyl oxygen is replaced by an imino group.. primary carboxamide : A carboxamide resulting from the formal condensation of a carboxylic acid with ammonia; formula RC(=O)NH2. | 2.01 | 1 | 0 | carboximidic acid;
formamides;
monocarboxylic acid amide;
one-carbon compound | solvent |
iodine
Iodine: A nonmetallic element of the halogen group that is represented by the atomic symbol I, atomic number 53, and atomic weight of 126.90. It is a nutritionally essential element, especially important in thyroid hormone synthesis. In solution, it has anti-infective properties and is used topically.. diiodine : Molecule comprising two covalently bonded iodine atoms with overall zero charge.. | 1.96 | 1 | 0 | diatomic iodine | nutrient |
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. | 2.15 | 1 | 0 | metal allergen;
nickel group element atom | epitope;
micronutrient |
triphosphoric acid
triphosphoric acid: used as water softener, peptizing agent, emulsifier & dispersing agent; ingredient of cleansers; meat preservative; RN given refers to parent cpd; structure | 1.96 | 1 | 0 | acyclic phosphorus acid anhydride;
phosphorus oxoacid | |
pteridines
[no description available] | 5.81 | 30 | 0 | azaarene;
mancude organic heterobicyclic parent;
ortho-fused heteroarene;
pteridines | |
mercaptoethanol
Mercaptoethanol: A water-soluble thiol derived from hydrogen sulfide and ethanol. It is used as a reducing agent for disulfide bonds and to protect sulfhydryl groups from oxidation. | 1.96 | 1 | 0 | alkanethiol;
primary alcohol | geroprotector |
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. | 2.37 | 2 | 0 | ethylenediamine derivative;
polyamino carboxylic acid;
tetracarboxylic acid | anticoagulant;
antidote;
chelator;
copper chelator;
geroprotector |
uridine triphosphate
Uridine Triphosphate: Uridine 5'-(tetrahydrogen triphosphate). A uracil nucleotide containing three phosphate groups esterified to the sugar moiety. | 1.98 | 1 | 0 | pyrimidine ribonucleoside 5'-triphosphate;
uridine 5'-phosphate | Escherichia coli metabolite;
mouse metabolite |
histidine
Histidine: An essential amino acid that is required for the production of HISTAMINE.. L-histidine : The L-enantiomer of the amino acid histidine.. histidine : An alpha-amino acid that is propanoic acid bearing an amino substituent at position 2 and a 1H-imidazol-4-yl group at position 3. | 2.42 | 2 | 0 | amino acid zwitterion;
histidine;
L-alpha-amino acid;
polar amino acid zwitterion;
proteinogenic amino acid | algal metabolite;
Escherichia coli metabolite;
human metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
Saccharomyces cerevisiae metabolite |
2'-deoxyadenosine triphosphate
2'-deoxyadenosine triphosphate: RN given refers to unlabeled parent cpd | 2.03 | 1 | 0 | 2'-deoxyadenosine 5'-phosphate;
purine 2'-deoxyribonucleoside 5'-triphosphate | Escherichia coli metabolite;
mouse metabolite |
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. | 2.02 | 1 | 0 | elemental manganese;
manganese group element atom | Escherichia coli metabolite;
micronutrient |
deuterium
Deuterium: The stable isotope of hydrogen. It has one neutron and one proton in the nucleus. | 3.06 | 1 | 0 | dihydrogen | |
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. | 2.15 | 1 | 0 | cobalt group element atom;
metal allergen | micronutrient |
methotrexate
[no description available] | 1.96 | 1 | 0 | dicarboxylic acid;
monocarboxylic acid amide;
pteridines | abortifacient;
antimetabolite;
antineoplastic agent;
antirheumatic drug;
dermatologic drug;
DNA synthesis inhibitor;
EC 1.5.1.3 (dihydrofolate reductase) inhibitor;
immunosuppressive agent |
pyrophosphate
Diphosphates: Inorganic salts of phosphoric acid that contain two phosphate groups. | 7.02 | 1 | 0 | diphosphate ion | |
nadp
[no description available] | 2.87 | 4 | 0 | | |
nad
NAD(1-) : An anionic form of nicotinamide adenine dinucleotide arising from deprotonation of the two OH groups of the diphosphate moiety. | 1.95 | 1 | 0 | organophosphate oxoanion | cofactor;
human metabolite;
hydrogen acceptor;
Saccharomyces cerevisiae metabolite |
6-hydroxymethyl-7,8-dihydropterin
2-amino-6-(hydroxymethyl)-7,8-dihydropteridin-4-one : A dihydropterin that is 7,8-dihydropteridin-4-one substituted at positions 2 and 6 by amino and hydroxymethyl groups respectively.. 2-amino-6-(hydroxymethyl)-7,8-dihydropteridin-4-ol : A dihydropterin that is 7,8-dihydropteridin-4-ol substituted at positions 2 and 6 by amino and hydroxymethyl groups respectively. | 2.07 | 1 | 0 | dihydropterin | Saccharomyces cerevisiae metabolite |
sepiapterin
sepiapterin: A substrate of sepiapterin reductase | 7.88 | 4 | 0 | sepiapterin | |
7,8-dihydroneopterin
7,8-dihydroneopterin: an antioxidant. 7,8-dihydroneopterin : A neopterin where positions C-7 and C-8 have been hydrogenated. | 2.07 | 1 | 0 | dihydropterin;
neopterins | Escherichia coli metabolite;
human metabolite;
metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
dihydrofolate
dihydrofolic acid : A folic acid derivative acted upon by dihydrofolate reductase to produce tetrahydrofolic acid. It interacts with bacteria during cell division and is targeted by various drugs to prevent nucleic acid synthesis. | 1.98 | 1 | 0 | dihydrofolic acids | Escherichia coli metabolite;
mouse metabolite |
guanosine triphosphate
Guanosine Triphosphate: Guanosine 5'-(tetrahydrogen triphosphate). A guanine nucleotide containing three phosphate groups esterified to the sugar moiety. | 3.7 | 10 | 0 | guanosine 5'-phosphate;
purine ribonucleoside 5'-triphosphate | Escherichia coli metabolite;
mouse metabolite;
uncoupling protein inhibitor |
guanosine
ribonucleoside : Any nucleoside where the sugar component is D-ribose. | 2.07 | 1 | 0 | guanosines;
purines D-ribonucleoside | fundamental metabolite |
sapropterin
sapropterin: RN given refers to parent cpd; co-factor required for catalytic activity of nitric oxide synthases. (6R)-5,6,7,8-tetrahydrobiopterin : A 5,6,7,8-tetrahydrobiopterin in which the stereocentre at position 6 has R-configuration.. sapropterin : A tetrahydropterin that is 2-amino-5,6,7,8-tetrahydropteridin-4(3H)-one in which a hydrogen at position 6 is substituted by a 1,2-dihydroxypropyl group (6R,1'R,2'S-enantiomer). | 5.01 | 13 | 0 | 5,6,7,8-tetrahydrobiopterin | coenzyme;
cofactor;
diagnostic agent;
human metabolite |
folic acid
folcysteine: used to promote fertility in chickens. vitamin B9 : Any B-vitamin that exhibits biological activity against vitamin B9 deficiency. Vitamin B9 refers to the many forms of folic acid and its derivatives, including tetrahydrofolic acid (the active form), methyltetrahydrofolate (the primary form found in blood), methenyltetrahydrofolate, folinic acid amongst others. They are present in abundance in green leafy vegetables, citrus fruits, and animal products. Lack of vitamin B9 leads to anemia, a condition in which the body cannot produce sufficient number of red blood cells. Symptoms of vitamin B9 deficiency include fatigue, muscle weakness, and pale skin. | 3.26 | 6 | 0 | folic acids;
N-acyl-amino acid | human metabolite;
mouse metabolite;
nutrient |
5,6,7,8-tetrahydromethanopterin
[no description available] | 2.07 | 1 | 0 | tetrahydromethanopterin | |
2-amino-4-oxo-6-acetyl-7,8-dihydro-3h,9h-pyrimidodiazepine
2-amino-4-oxo-6-acetyl-7,8-dihydro-3H,9H-pyrimidodiazepine: a 6-acetylpyrimidodiazepine intermediate in biosyn of drosopterin. 6-acetyl-2-amino-3,7,8,9-tetrahydropyrimido[4,5-b][1,4]diazepin-4-one : A member of the class of pyrimidodiazepine 3,7,8,9-tetrahydropyrimido[4,5-b][1,4]diazepin-4-one bearing amino and acetyl substituents at positions 2 and 6 respectively. | 2.37 | 2 | 0 | methyl ketone;
pyrimidodiazepine | metabolite |
dyspropterin
dyspropterin: intermediate in biosynthetic pathway of tetrahydrobiopterin; structure given in first source. dyspropterin : A tetrahydropterin that is 2-amino-5,6,7,8-tetrahydropteridin-4(3H)-one substituted by a 2-oxopropanoyl group at position 6. | 7.66 | 3 | 0 | biopterins;
tetrahydropterin | human metabolite;
metabolite;
mouse metabolite |
neopterin
[no description available] | 6.05 | 38 | 0 | | |
2-amino-4-hydroxy-6,7-dimethyl-5,6,7,8-tetrahydropteridine
2-amino-4-hydroxy-6,7-dimethyl-5,6,7,8-tetrahydropteridine: used as a synthetic cofactor in place of tetrahydrofolate; RN given refers to parent cpd; structure | 2.05 | 1 | 0 | pterins | |
5,6,7,8-tetrahydrofolic acid
5,6,7,8-tetrahydrofolic acid: RN given refers to (DL)-isomer | 2.76 | 3 | 0 | tetrahydrofolic acid | |
tetrahydropterin
[no description available] | 7.37 | 2 | 0 | | |
nucleoside q
Nucleoside Q: A modified nucleoside which is present in the first position of the anticodon of tRNA-tyrosine, tRNA-histidine, tRNA-asparagine and tRNA-aspartic acid of many organisms. It is believed to play a role in the regulatory function of tRNA. Nucleoside Q can be further modified to nucleoside Q*, which has a mannose or galactose moiety linked to position 4 of its cyclopentenediol moiety.. queuosine : A nucleoside found in tRNA that has an additional cyclopentenyl ring added via an NH group to the methyl group of 7-methyl-7-deazaguanosine. The cyclopentenyl ring may carry other substituents. | 2.07 | 1 | 0 | 7-deazaguanine ribonucleoside | |
methanopterin
methanopterin: isolated from Methanobacterium thermautotrophicum. methanopterin : A member of the class of methanopterins obtained by formal dehydrogenation at positions 5, 6, 7 and 8 of tetrahydromethanopterin. The parent of the class of methanopterins | 2.03 | 1 | 0 | methanopterins | |
drosopterin
drosopterin: eye pigments of Drosophila melanogaster; RN given refers to (trans)-(+-)-isomer; structure | 2.37 | 2 | 0 | | |
archaeosine
archaeosine: post-transcriptional modification seen in archaeal RNA; structure given in first source. archaeosine : A 7-deazaguanine ribonucleoside having 7-formamidino-7-deazaguanine as the nucleobase. It is found in the majority of archaeal tRNAs specifically at position 15 of the dihydrouridine loop (D-loop), a position not modified in either eukaryotic or bacterial tRNA. | 2.07 | 1 | 0 | 7-deazaguanine ribonucleoside | |