NNK Metabolite

**Semantic type:** Functional Concept

**Definition:** Molecules created during the catabolism of the nitrosamine 4-methylnitrosamino-1,3-pyridyl-1-butanone (nicotine-derived nitrosamine ketone; NNK). The presence of these metabolic products may be correlated with the exposure of the subject to tobacco products.

**Synonyms:** - 4-Methylnitrosamino-1,3-Pyridyl-1-Butanone Metabolite - Nicotine-Derived Nitrosamine Ketone Metabolite