Substance | Relationship Strength | Studies | Trials | Classes | Roles |
acetone methyl ketone : A ketone of formula RC(=O)CH3 (R =/= H). | 2.08 | 1 | 0 | ketone body; methyl ketone; propanones; volatile organic compound | EC 3.5.1.4 (amidase) inhibitor; human metabolite; polar aprotic solvent |
carbamates [no description available] | 2.04 | 1 | 0 | amino-acid anion | |
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 |
chlorine chloride : A halide anion formed when chlorine picks up an electron to form an an anion. | 2.6 | 1 | 0 | halide anion; monoatomic chlorine | cofactor; Escherichia coli metabolite; human metabolite |
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.. | 7.01 | 1 | 0 | diatomic iodine | nutrient |
dihydroxyphenylalanine Dihydroxyphenylalanine: A beta-hydroxylated derivative of phenylalanine. The D-form of dihydroxyphenylalanine has less physiologic activity than the L-form and is commonly used experimentally to determine whether the pharmacological effects of LEVODOPA are stereospecific.. dopa : A hydroxyphenylalanine carrying hydroxy substituents at positions 3 and 4 of the benzene ring. | 2.05 | 1 | 0 | hydroxyphenylalanine; non-proteinogenic alpha-amino acid; tyrosine derivative | human metabolite |
uridine diphosphate Uridine Diphosphate: A uracil nucleotide containing a pyrophosphate group esterified to C5 of the sugar moiety. | 2.1 | 1 | 0 | pyrimidine ribonucleoside 5'-diphosphate; uridine 5'-phosphate | Escherichia coli metabolite; mouse metabolite |
galactose galactopyranose : The pyranose form of galactose. | 2.1 | 1 | 0 | D-galactose; galactopyranose | Escherichia coli metabolite; mouse metabolite |
levodopa Levodopa: The naturally occurring form of DIHYDROXYPHENYLALANINE and the immediate precursor of DOPAMINE. Unlike dopamine itself, it can be taken orally and crosses the blood-brain barrier. It is rapidly taken up by dopaminergic neurons and converted to DOPAMINE. It is used for the treatment of PARKINSONIAN DISORDERS and is usually given with agents that inhibit its conversion to dopamine outside of the central nervous system.. L-dopa : An optically active form of dopa having L-configuration. Used to treat the stiffness, tremors, spasms, and poor muscle control of Parkinson's disease | 2.08 | 1 | 0 | amino acid zwitterion; dopa; L-tyrosine derivative; non-proteinogenic L-alpha-amino acid | allelochemical; antidyskinesia agent; antiparkinson drug; dopaminergic agent; hapten; human metabolite; mouse metabolite; neurotoxin; plant growth retardant; plant metabolite; prodrug |
tryptophan Tryptophan: An essential amino acid that is necessary for normal growth in infants and for NITROGEN balance in adults. It is a precursor of INDOLE ALKALOIDS in plants. It is a precursor of SEROTONIN (hence its use as an antidepressant and sleep aid). It can be a precursor to NIACIN, albeit inefficiently, in mammals.. tryptophan : An alpha-amino acid that is alanine bearing an indol-3-yl substituent at position 3. | 7.1 | 1 | 0 | erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid zwitterion; L-alpha-amino acid; proteinogenic amino acid; tryptophan zwitterion; tryptophan | antidepressant; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite |
boranes Boranes: The collective name for the boron hydrides, which are analogous to the alkanes and silanes. Numerous boranes are known. Some have high calorific values and are used in high-energy fuels. (From Grant & Hackh's Chemical Dictionary, 5th ed). borane : The simplest borane, consisting of a single boron atom carrying three hydrogens.. boranes : The molecular hydrides of boron. | 2.51 | 2 | 0 | boranes; mononuclear parent hydride | |
4-butyrolactone 4-Butyrolactone: One of the FURANS with a carbonyl thereby forming a cyclic lactone. It is an endogenous compound made from gamma-aminobutyrate and is the precursor of gamma-hydroxybutyrate. It is also used as a pharmacological agent and solvent.. tetrahydrofuranone : Any oxolane having an oxo- substituent at any position on the tetrahydrofuran ring.. gamma-butyrolactone : A butan-4-olide that is tetrahydrofuran substituted by an oxo group at position 2. | 2.05 | 1 | 0 | butan-4-olide | metabolite; neurotoxin |
styrene Styrene: A colorless, toxic liquid with a strong aromatic odor. It is used to make rubbers, polymers and copolymers, and polystyrene plastics.. styrene : A vinylarene that is benzene carrying a vinyl group. It has been isolated from the benzoin resin produced by Styrax species. | 2.11 | 1 | 0 | styrenes; vinylarene; volatile organic compound | mouse metabolite; mutagen; plant metabolite |
allyl alcohol allyl alcohol: structure. allylic alcohol : An alcohol where the hydroxy group is attached to a saturated carbon atom adjacent to a double bond (R groups may be H, organyl, etc.).. allyl alcohol : A propenol in which the C=C bond connects C-2 and C-3. It is has been found in garlic (Allium sativum). Formerly used as a herbicide for the control of various grass and weed seeds. | 2.02 | 1 | 0 | primary allylic alcohol; propenol | antibacterial agent; fungicide; herbicide; insecticide; plant metabolite |
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. | 2.13 | 1 | 0 | pyrrole; secondary amine | |
indazoles Indazoles: A group of heterocyclic aromatic organic compounds consisting of the fusion of BENZENE and PYRAZOLES. | 2.41 | 1 | 0 | indazole | |
benzofuran benzofuran: RN & structure given in first source. 1-benzofuran : A benzofuran consisting of fused benzene and furan rings. It is the parent compound of the class of 1-benzofurans. | 2.11 | 1 | 0 | 1-benzofurans; benzofuran | |
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. | 2.13 | 1 | 0 | diazine; pyrazines | Daphnia magna metabolite |
propadiene [no description available] | 2.04 | 1 | 0 | allenes | |
ketene ketene: structure. ketene : Carbonyl compounds where the C=O bond is conjugated to an alkylidene group. | 7.31 | 1 | 0 | ketene | |
1,3-dithiolane [no description available] | 7.02 | 1 | 0 | dithiolane | |
palladium Palladium: A chemical element having an atomic weight of 106.4, atomic number of 46, and the symbol Pd. It is a white, ductile metal resembling platinum, and following it in abundance and importance of applications. It is used in dentistry in the form of gold, silver, and copper alloys.. palladium : Chemical element (nickel group element atom) with atomic number 46. | 2.11 | 1 | 0 | metal allergen; nickel group element atom; platinum group metal atom | |
silver Silver: An element with the atomic symbol Ag, atomic number 47, and atomic weight 107.87. It is a soft metal that is used medically in surgical instruments, dental prostheses, and alloys. Long-continued use of silver salts can lead to a form of poisoning known as ARGYRIA. | 2.78 | 3 | 0 | copper group element atom; elemental silver | Escherichia coli metabolite |
gold Gold: A yellow metallic element with the atomic symbol Au, atomic number 79, and atomic weight 197. It is used in jewelry, goldplating of other metals, as currency, and in dental restoration. Many of its clinical applications, such as ANTIRHEUMATIC AGENTS, are in the form of its salts. | 2.76 | 3 | 0 | copper group element atom; elemental gold | |
silver nitrate Silver Nitrate: A silver salt with powerful germicidal activity. It has been used topically to prevent OPHTHALMIA NEONATORUM. | 2.08 | 1 | 0 | inorganic nitrate salt; silver salt | astringent |
fluorine Fluorine: A nonmetallic, diatomic gas that is a trace element and member of the halogen family. It is used in dentistry as fluoride (FLUORIDES) to prevent dental caries. | 4.84 | 10 | 0 | diatomic fluorine; gas molecular entity | NMR chemical shift reference compound |
fluorides [no description available] | 2.46 | 2 | 0 | halide anion; monoatomic fluorine | |
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. | 2.05 | 1 | 0 | benzenes; phenyl acetates | |
chloroprene Chloroprene: Toxic, possibly carcinogenic, monomer of neoprene, a synthetic rubber; causes damage to skin, lungs, CNS, kidneys, liver, blood cells and fetuses. Synonym: 2-chlorobutadiene. | 2.41 | 1 | 0 | chloroolefin | |
alkenes [no description available] | 2.49 | 2 | 0 | | |
fluorodopa f 18 fluorodopa F 18: RN given refers to (L)-isomer | 2.05 | 1 | 0 | (18)F radiopharmaceutical; 6-fluoro-L-dopa | |
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). | 2.11 | 1 | 0 | carbene; methanediyl | |
proline Proline: A non-essential amino acid that is synthesized from GLUTAMIC ACID. It is an essential component of COLLAGEN and is important for proper functioning of joints and tendons.. proline : An alpha-amino acid that is pyrrolidine bearing a carboxy substituent at position 2. | 3.13 | 1 | 0 | amino acid zwitterion; glutamine family amino acid; L-alpha-amino acid; proline; proteinogenic amino acid | algal metabolite; compatible osmolytes; Escherichia coli metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite |
organophosphonates hydrogenphosphite : A divalent inorganic anion resulting from the removal of a proton from two of the hydroxy groups of phosphorous acid. | 2.06 | 1 | 0 | divalent inorganic anion; phosphite ion | |
bms204352 BMS204352: a calcium-sensitive opener of maxi-K potassium channels; structure in first source | 2.01 | 1 | 0 | | |
benzofurans Benzofurans: Compounds that contain a BENZENE ring fused to a furan ring. | 2.52 | 2 | 0 | | |
n-fluorobenzenesulfonimide N-fluorobenzenesulfonimide: structure in first source | 2.1 | 1 | 0 | | |
1-butyl-3-methylimidazolium tetrafluoroborate [no description available] | 2.05 | 1 | 0 | | |
quinine [no description available] | 7.02 | 1 | 0 | cinchona alkaloid | antimalarial; muscle relaxant; non-narcotic analgesic |
caryophyllene caryophyllene: RN given refers to cpd without isomeric designation; structure given in first source | 7.41 | 1 | 0 | | |
kapakahine f kapakahine F: from the marine sponge Cribrochalina olemda; structure in first source | 2.1 | 1 | 0 | | |
chaetominine chaetominine: a cytotoxic alkaloid produced by endophytic Chaetomium sp.; structure in first source. chaetominine : An organic heterotetracyclic compound that consists of 4,5,5a,9c-tetrahydro-3H-2a,9b-diazacyclopenta[jk]fluorene-1,3(2H)-dione substituted by a hydroxy group at position 5, a methyl group at position 2 and a 4-oxoquinazolin-3(4H)-yl group at position 4 (the 2S,4R,5aS,9cS stereoisomer). It is a cytotoxic alkaloid isolated from the endophytic fungus Chaetomium. | 2.1 | 1 | 0 | indole alkaloid; lactam; organic heterotetracyclic compound; quinazolines | metabolite |
piperidines Piperidines: A family of hexahydropyridines. | 2.05 | 1 | 0 | | |
kapakahine b kapakahine B: structure in first source | 2.1 | 1 | 0 | | |