Substance | Relationship Strength | Studies | Trials | Classes | Roles |
alpha-ketoadipic acid 2-oxoadipic acid : An oxo dicarboxylic acid that is adipic acid substituted by an oxo group at position 2. | 1.99 | 1 | 0 | oxo dicarboxylic acid | human urinary metabolite; mouse metabolite |
adipic acid adipic acid : An alpha,omega-dicarboxylic acid that is the 1,4-dicarboxy derivative of butane. | 2.13 | 1 | 0 | alpha,omega-dicarboxylic acid; dicarboxylic fatty acid | food acidity regulator; human xenobiotic metabolite |
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 |
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. | 1.97 | 1 | 0 | tricarboxylic acid | antimicrobial agent; chelator; food acidity regulator; fundamental metabolite |
2-aminoadipic acid 2-Aminoadipic Acid: A metabolite in the principal biochemical pathway of lysine. It antagonizes neuroexcitatory activity modulated by the glutamate receptor, N-METHYL-D-ASPARTATE; (NMDA).. 2-aminoadipic acid : An alpha-amino acid that is adipic acid bearing a single amino substituent at position 2. An intermediate in the formation of lysine. | 2.07 | 1 | 0 | amino dicarboxylic acid; dicarboxylic fatty acid; non-proteinogenic alpha-amino acid | Caenorhabditis elegans metabolite; mammalian metabolite |
aminocaproic acid Aminocaproic Acid: An antifibrinolytic agent that acts by inhibiting plasminogen activators which have fibrinolytic properties.. 6-aminohexanoic acid : An epsilon-amino acid comprising hexanoic acid carrying an amino substituent at position C-6. Used to control postoperative bleeding, and to treat overdose effects of the thrombolytic agents streptokinase and tissue plasminogen activator. | 2.13 | 1 | 0 | amino acid zwitterion; epsilon-amino acid; omega-amino fatty acid | antifibrinolytic drug; hematologic agent; 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. | 2.17 | 1 | 0 | 2-hydroxy monocarboxylic acid | algal metabolite; Daphnia magna metabolite |
glycolic acid glycolic acid: RN given refers to parent cpd. glycolic acid : A 2-hydroxy monocarboxylic acid that is acetic acid where the methyl group has been hydroxylated. | 2.17 | 1 | 0 | 2-hydroxy monocarboxylic acid; primary alcohol | keratolytic drug; 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. | 2.73 | 3 | 0 | elemental hydrogen; elemental molecule; gas molecular entity | antioxidant; electron donor; food packaging gas; fuel; human metabolite |
dithionite Dithionite: Dithionite. The dithionous acid ion and its salts. | 2 | 1 | 0 | sulfur oxide; sulfur oxoanion | |
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. | 3.52 | 8 | 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 |
adenosine diphosphate Adenosine Diphosphate: Adenosine 5'-(trihydrogen diphosphate). An adenine nucleotide containing two phosphate groups esterified to the sugar moiety at the 5'-position. | 2 | 1 | 0 | adenosine 5'-phosphate; purine ribonucleoside 5'-diphosphate | fundamental metabolite; human 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. | 2.05 | 1 | 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 |
cycloheximide Cycloheximide: Antibiotic substance isolated from streptomycin-producing strains of Streptomyces griseus. It acts by inhibiting elongation during protein synthesis.. cycloheximide : A dicarboximide that is 4-(2-hydroxyethyl)piperidine-2,6-dione in which one of the hydrogens attached to the carbon bearing the hydroxy group is replaced by a 3,5-dimethyl-2-oxocyclohexyl group. It is an antibiotic produced by the bacterium Streptomyces griseus. | 1.95 | 1 | 0 | antibiotic fungicide; cyclic ketone; dicarboximide; piperidine antibiotic; piperidones; secondary alcohol | anticoronaviral agent; bacterial metabolite; ferroptosis inhibitor; neuroprotective agent; protein synthesis inhibitor |
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. | 2.43 | 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 |
ethane Ethane: A two carbon alkane with the formula H3C-CH3.. ethane : An alkane comprising of two carbon atoms. | 2.39 | 2 | 0 | alkane; gas molecular entity | plant metabolite; refrigerant |
ethylene Plastipore: high density polyethylene sponge biocompatible material; used as posts in dental bridges | 2 | 1 | 0 | alkene; gas molecular entity | plant hormone; refrigerant |
acetylene [no description available] | 1.99 | 1 | 0 | alkyne; gas molecular entity; terminal acetylenic compound | |
trimethylchlorosilane trimethylsilyl chloride: structure in first source. chlorotrimethylsilane : A silyl chloride consisting of a central silicon atom covalently bound to one chloro and three methyl groups. Chlorotrimethylsilane is a derivatisation agent used in gas chromatography/mass spectrometry applications. | 2.41 | 1 | 0 | silyl chloride | chromatographic reagent |
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. | 1.98 | 1 | 0 | butanone; dialkyl ketone; methyl ketone; volatile organic compound | bacterial metabolite; polar aprotic solvent |
caprolactam Caprolactam: Cyclic amide of caproic acid used in manufacture of synthetic fibers of the polyamide type. Can cause local irritation.. epsilon-caprolactam : A member of the class of caprolactams that is azepane substituted by an oxo group at position 2. | 2.13 | 1 | 0 | caprolactams | human blood serum metabolite |
carbonates Carbonates: Salts or ions of the theoretical carbonic acid, containing the radical CO2(3-). Carbonates are readily decomposed by acids. The carbonates of the alkali metals are water-soluble; all others are insoluble. (From Grant & Hackh's Chemical Dictionary, 5th ed). carbonates : Organooxygen compounds that are salts or esters of carbonic acid, H2CO3. | 2.17 | 1 | 0 | carbon oxoanion | |
molybdenum Molybdenum: A metallic element with the atomic symbol Mo, atomic number 42, and atomic weight 95.95. It is an essential trace element, being a component of the enzymes xanthine oxidase, aldehyde oxidase, and nitrate reductase. | 4.06 | 14 | 0 | chromium group element atom | micronutrient |
argon Argon: A noble gas with the atomic symbol Ar, atomic number 18, and atomic weight 39.948. It is used in fluorescent tubes and wherever an inert atmosphere is desired and nitrogen cannot be used. | 2 | 1 | 0 | monoatomic argon; noble gas atom; p-block element atom | food packaging gas; neuroprotective agent |
vanadium Vanadium: A metallic element with the atomic symbol V, atomic number 23, and atomic weight 50.94. It is used in the manufacture of vanadium steel. Prolonged exposure can lead to chronic intoxication caused by absorption usually via the lungs. | 2 | 1 | 0 | elemental vanadium; vanadium group element atom | micronutrient |
molybdate ion molybdate : A divalent inorganic anion obtained by removal of both protons from molybdic acid | 2.43 | 2 | 0 | divalent inorganic anion; molybdenum oxoanion | Escherichia coli metabolite |
fluorides [no description available] | 2 | 1 | 0 | halide anion; monoatomic fluorine | |
oxovanadium iv oxovanadium IV: forms complexes with simple sugars | 2.04 | 1 | 0 | vanadium oxide | |
vanadates Vanadates: Oxyvanadium ions in various states of oxidation. They act primarily as ion transport inhibitors due to their inhibition of Na(+)-, K(+)-, and Ca(+)-ATPase transport systems. They also have insulin-like action, positive inotropic action on cardiac ventricular muscle, and other metabolic effects.. vanadate(3-) : A vanadium oxoanion that is a trianion with formula VO4 in which the vanadium is in the +5 oxidation state and is attached to four oxygen atoms. | 2.04 | 1 | 0 | trivalent inorganic anion; vanadium oxoanion | EC 3.1.3.1 (alkaline phosphatase) inhibitor; EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor; EC 3.1.3.41 (4-nitrophenylphosphatase) inhibitor; EC 3.1.3.48 (protein-tyrosine-phosphatase) inhibitor |
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. | 2.73 | 3 | 0 | acyl-CoA | acyl donor; coenzyme; effector; fundamental metabolite |
phosphothreonine Phosphothreonine: The phosphoric acid ester of threonine. Used as an identifier in the analysis of peptides, proteins, and enzymes.. O-phospho-L-threonine : A L-threonine derivative phosphorylated at the side-chain hydroxy function. | 1.99 | 1 | 0 | L-threonine derivative; non-proteinogenic L-alpha-amino acid; O-phosphoamino acid | Escherichia coli metabolite |
homoisocitric acid [no description available] | 2.07 | 1 | 0 | tricarboxylic acid | |
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. | 2.99 | 4 | 0 | chalcogen; nonmetal atom | macronutrient |
7-mercaptoheptanoylthreonine phosphate 7-mercaptoheptanoylthreonine phosphate: component B of the methylcoenzyme M methylreductase system of Methanobacterium thermoautotrophicum; structure given in first source | 1.99 | 1 | 0 | L-threonine derivative | coenzyme |
nitrogenase Nitrogenase: An enzyme system that catalyzes the fixing of nitrogen in soil bacteria and blue-green algae (CYANOBACTERIA). EC 1.18.6.1. | 4.5 | 23 | 0 | | |
tetrafluoroaluminate tetrafluoroaluminate: induces inositol phosphate formation | 2 | 1 | 0 | | |