NNK (4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone)

Safety Summary

Regulatory Status

Sources

These citations are the ones recorded for the human adult context.

• IARC Monographs Volume 100E: Personal Habits and Indoor Combustions — Tobacco Smoking Group 1, Smokeless Tobacco Group 1, Second-hand Tobacco Smoke Group 1; NNK (4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone) Group 1, NNN (N'-nitrosonornicotine) Group 1 as Individual Tobacco-Specific Nitrosamines (2012) REGULATORY · 2012
• PROPOSITION 65 LIST OF CARCINOGENS OR REPRODUCTIVE TOXICANTS REGULATORY · 2026
• IARC Monographs, List of Classifications REGULATORY · 2026
• TEDX List of Potential Endocrine Disruptors, full export (Excel from the publisher's own search, operator-saved 2026-10-08; list last updated September 2018) REFERENCE_DATABASE
• Permissible Exposure Limits – OSHA Annotated Table Z-1 REGULATORY
• where to look CAMEO Chemicals, as recorded by PubChem (Experimental Properties, CID 47289; where-to-look, not a source of this value) DATABASE · 2026
• EPA CompTox CTX API: predicted properties for DTXSID3020881 (NNK (4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone)) REFERENCE

Same data as the API response, which is open and needs no key. The full per-record source list is available to authenticated callers.