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4-(methylnitrosamino)- 1-(3-pyridyl)-1-butanone (abbreviated NNK) is a nitrosamine present in tobacco that is a potent procarcinogen. It is activated by CYP2A6. It is a biomarker of exposure to cigarette smoke. It is produced upon the curing of tobacco.
1 edit since May 19, 2008. Last edited Jun 22, 2008 by Cacycle (43).
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