| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
nitrates
Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical. | 1.97 | 1 | 0 | monovalent inorganic anion;
nitrogen oxoanion;
reactive nitrogen species | |
thymine
[no description available] | 1.97 | 1 | 0 | pyrimidine nucleobase;
pyrimidone | Escherichia coli metabolite;
human metabolite;
mouse metabolite |
menthol
Menthol: A monoterpene cyclohexanol produced from mint oils. | 2.42 | 2 | 0 | p-menthane monoterpenoid;
secondary alcohol | volatile oil component |
benzyl isothiocyanate
benzyl isothiocyanate: inhibits carcinogen-induced neoplasia; structure in Negwer, 5th ed, #715; also promotes urinary bladder carcinoma | 2.67 | 3 | 0 | benzenes;
isothiocyanate | antibacterial drug |
1,4-phenylenebis(methylene)selenocyanate
1,4-phenylenebis(methylene)selenocyanate: structure given in first source; inhibits DMBA-induced carcinogenesis by inhibiting DMBA-DNA adduct formation | 1.98 | 1 | 0 | | |
corticosterone
[no description available] | 1.99 | 1 | 0 | 11beta-hydroxy steroid;
20-oxo steroid;
21-hydroxy steroid;
3-oxo-Delta(4) steroid;
C21-steroid;
glucocorticoid;
primary alpha-hydroxy ketone | human metabolite;
mouse metabolite |
diethylnitrosamine
Diethylnitrosamine: A nitrosamine derivative with alkylating, carcinogenic, and mutagenic properties.. N-nitrosodiethylamine : A nitrosamine that is N-ethylethanamine substituted by a nitroso group at the N-atom. | 1.98 | 1 | 0 | nitrosamine | carcinogenic agent;
hepatotoxic agent;
mutagen |
dimethylnitrosamine
Dimethylnitrosamine: A nitrosamine derivative with alkylating, carcinogenic, and mutagenic properties. It causes serious liver damage and is a hepatocarcinogen in rodents. | 2.38 | 2 | 0 | nitrosamine | geroprotector;
mutagen |
phenyl isocyanate
[no description available] | 1.97 | 1 | 0 | benzenes;
isocyanates | allergen;
hapten |
n'-nitrosoanabasine
N'-nitrosoanabasine: structure; RN given refers to cpd without isomeric designation | 1.98 | 1 | 0 | citraconoyl group | |
phenethyl isothiocyanate
phenethyl isothiocyanate: a dietary liver aldehyde dehydrogenase inhibitor; promotes urinary bladder carcinoma. phenethyl isothiocyanate : An isothiocyanate having a phenethyl group attached to the nitrogen. It is a naturally occurring compound found in some cruciferous vegetables (e.g. watercress) and is known to possess anticancer properties. | 2.89 | 4 | 0 | isothiocyanate | antineoplastic agent;
EC 1.2.1.3 [aldehyde dehydrogenase (NAD(+))] inhibitor;
metabolite |
deuterium
Deuterium: The stable isotope of hydrogen. It has one neutron and one proton in the nucleus. | 1.97 | 1 | 0 | dihydrogen | |
n'-nitrosonornicotine
N'-nitrosonornicotine: structure; a potent carcinogen in laboratory animals | 4.91 | 4 | 0 | pyridines;
pyrrolidines | |
4-(n-methyl-n-nitrosamino)-1-(3-pyridyl)-1-butanone
4-(N-methyl-N-nitrosamino)-1-(3-pyridyl)-1-butanone: structure; from tobacco smoke | 6.59 | 15 | 0 | nitrosamine;
pyridines | |
o-(6)-methylguanine
O-(6)-methylguanine: structure. 6-O-methylguanine : A methylguanine in which the methyl group is positioned on the oxygen at position 6. Formed in DNA by alkylation of the oxygen atom of guanine, most often by N-nitroso compounds and sometimes due to methylation by other compounds such as endogenous S-adenosylmethionine, it base-pairs to thymine rather than cytidine, causing a G:C to A:T transition in DNA.. methylguanine : A 2-aminopurine that is guanine bearing a single methyl substituent. | 2.67 | 3 | 0 | methylguanine | mutagen |
o-4-methylthymine
O(4)-methylthymine : A methylthymine in which the methyl group is located at the O4-position. | 1.97 | 1 | 0 | aromatic ether;
methylthymine | human metabolite |
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. | 2.69 | 3 | 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 |
4-(methylnitrosamino)-1-(3-pyridyl)-1-butan-1-ol
4-(methylnitrosamino)-1-(3-pyridyl)-1-butan-1-ol: structure in first source. 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol : A member of the class of nitrosamines that is butan-1-ol substituted by a pyridin-3-yl group at position 1 and by a methyl(nitroso)amino group at position 4. It is a major metabolite of nitrosamine 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), which is a carcinogen found in tobacco and responsible for inducing lung cancer in smokers. | 1.98 | 1 | 0 | nitrosamine;
pyridines;
secondary alcohol | biomarker;
carcinogenic agent;
human urinary metabolite |
cyanates
Cyanates: Organic salts of cyanic acid containing the -OCN radical.. cyanates : Salts and esters of cyanic acid, HOC#N; compounds carrying the cyanate functional group -O-C#N.. isocyanates : Organonitrogen compounds that are derivatives of isocyanic acid; compounds containing the isocyanate functional group -N=C=O (as opposed to the cyanate group, -O-C#N). | 1.97 | 1 | 0 | | |
6-phenylhexyl isothiocyanate
[no description available] | 1.98 | 1 | 0 | | |
4-phenylbutyl isothiocyanate
4-phenylbutyl isothiocyanate: structure given in first source; inhibits tumorigenesis induced by 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone | 1.98 | 1 | 0 | benzenes;
organic amino compound | |
n'-nitrosoanatabine
N'-nitrosoanatabine: nitroso cpd prepared from alkaloid anatabine; structure given in first source | 1.98 | 1 | 0 | | |
cotinine
Cotinine: The N-glucuronide conjugate of cotinine is a major urinary metabolite of NICOTINE. It thus serves as a biomarker of exposure to tobacco SMOKING. It has CNS stimulating properties.. (-)-cotinine : An N-alkylpyrrolidine that consists of N-methylpyrrolidinone bearing a pyridin-3-yl substituent at position C-5 (the 5S-enantiomer). It is an alkaloid commonly found in Nicotiana tabacum. | 2.92 | 4 | 0 | N-alkylpyrrolidine;
pyridines;
pyrrolidin-2-ones;
pyrrolidine alkaloid | antidepressant;
biomarker;
human xenobiotic metabolite;
plant metabolite |
11-dehydrocorticosterone
11-dehydrocorticosterone : An 11-oxo steroid that is corticosterone in which the hydroxy substituent at the 11beta position has been oxidised to give the corresponding ketone. | 1.99 | 1 | 0 | 11-oxo steroid;
20-oxo steroid;
21-hydroxy steroid;
3-oxo-Delta(4) steroid;
corticosteroid;
primary alpha-hydroxy ketone | human metabolite;
mouse metabolite |
selenium
Selenium: An element with the atomic symbol Se, atomic number 34, and atomic weight 78.97. It is an essential micronutrient for mammals and other animals but is toxic in large amounts. Selenium protects intracellular structures against oxidative damage. It is an essential component of GLUTATHIONE PEROXIDASE. | 1.98 | 1 | 0 | chalcogen;
nonmetal atom | micronutrient |
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. | 1.99 | 1 | 0 | inorganic sodium salt;
nitrite salt | antidote to cyanide poisoning;
antihypertensive agent;
antimicrobial food preservative;
food antioxidant;
poison |
guanine
[no description available] | 2.67 | 3 | 0 | 2-aminopurines;
oxopurine;
purine nucleobase | algal metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |