| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
pyridine
azine : An organonitrogen compound of general structure RCH=N-N=CHR or RR'C=N-N=CRR'. | 2.21 | 1 | 0 | azaarene;
mancude organic heteromonocyclic parent;
monocyclic heteroarene;
pyridines | environmental contaminant;
NMR chemical shift reference compound |
methylamine
methyl group : An alkyl group that is the univalent group derived from methane by removal of a hydrogen atom. | 2.07 | 1 | 0 | methylamines;
one-carbon compound;
primary aliphatic amine | mouse metabolite |
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. | 2.11 | 1 | 0 | butanone;
dialkyl ketone;
methyl ketone;
volatile organic compound | bacterial metabolite;
polar aprotic solvent |
n'-nitrosonornicotine
N'-nitrosonornicotine: structure; a potent carcinogen in laboratory animals | 1.98 | 1 | 0 | pyridines;
pyrrolidines | |
pyrrolidine
[no description available] | 2.11 | 1 | 0 | azacycloalkane;
pyrrolidines;
saturated organic heteromonocyclic parent | |
4-(n-methyl-n-nitrosamino)-1-(3-pyridyl)-1-butanone
4-(N-methyl-N-nitrosamino)-1-(3-pyridyl)-1-butanone: structure; from tobacco smoke | 2.42 | 2 | 0 | nitrosamine;
pyridines | |
4-(methylnitrosamino)-4-(3-pyridyl)butanal
4-(methylnitrosamino)-4-(3-pyridyl)butanal: structure given in first source | 1.98 | 1 | 0 | | |
nicotine
(S)-nicotine : A 3-(1-methylpyrrolidin-2-yl)pyridine in which the chiral centre has S-configuration. The naturally occurring and most active enantiomer of nicotine, isolated from Nicotiana tabacum. | 3.68 | 9 | 0 | 3-(1-methylpyrrolidin-2-yl)pyridine | anxiolytic drug;
biomarker;
immunomodulator;
mitogen;
neurotoxin;
nicotinic acetylcholine receptor agonist;
peripheral nervous system drug;
phytogenic insecticide;
plant metabolite;
psychotropic drug;
teratogenic agent;
xenobiotic |
lignin
Lignin: The most abundant natural aromatic organic polymer found in all vascular plants. Lignin together with cellulose and hemicellulose are the major cell wall components of the fibers of all wood and grass species. Lignin is composed of coniferyl, p-coumaryl, and sinapyl alcohols in varying ratios in different plant species. (From Merck Index, 11th ed). lignin : A polyphenylpropanoid derived from three monolignol monomers: trans-p-coumaryl alcohol, coniferol and trans-sinapyl alcohol. There is extensive cross-linking and no defined primary structure. | 2.11 | 1 | 0 | | |
flavin-adenine dinucleotide
Flavin-Adenine Dinucleotide: A condensation product of riboflavin and adenosine diphosphate. The coenzyme of various aerobic dehydrogenases, e.g., D-amino acid oxidase and L-amino acid oxidase. (Lehninger, Principles of Biochemistry, 1982, p972) | 2.07 | 1 | 0 | flavin adenine dinucleotide;
vitamin B2 | cofactor;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
prosthetic group |
cytochrome c-t
Cytochromes c: Cytochromes of the c type that are found in eukaryotic MITOCHONDRIA. They serve as redox intermediates that accept electrons from MITOCHONDRIAL ELECTRON TRANSPORT COMPLEX III and transfer them to MITOCHONDRIAL ELECTRON TRANSPORT COMPLEX IV. | 2.41 | 1 | 0 | | |
6-hydroxy-3-succinoyl-pyridine
6-hydroxy-3-succinoyl-pyridine: structure in first source. 4-(6-hydroxypyridin-3-yl)-4-oxobutyrate : A 4-oxo monocarboxylic acid anion that is the conjugate base of 4-(6-hydroxypyridin-3-yl)-4-oxobutyric acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. | 2.21 | 1 | 0 | 4-oxo monocarboxylic acid anion | |
sodium nitrite
Sodium Nitrite: Nitrous acid sodium salt. Used in many industrial processes, in meat curing, coloring, and preserving, and as a reagent in ANALYTICAL CHEMISTRY TECHNIQUES. It is used therapeutically as an antidote in cyanide poisoning. The compound is toxic and mutagenic and will react in vivo with secondary or tertiary amines thereby producing highly carcinogenic nitrosamines.. sodium nitrite : An inorganic sodium salt having nitrite as the counterion. Used as a food preservative and antidote to cyanide poisoning. | 1.98 | 1 | 0 | inorganic sodium salt;
nitrite salt | antidote to cyanide poisoning;
antihypertensive agent;
antimicrobial food preservative;
food antioxidant;
poison |