# 1-Hexadecylpyridin-1-ium chloride--water (1/1/1)

URL: https://app.greenveil.ai/ingredients/ingredient_dtxsid_dtxsid20975463
Categories: beauty, industrial
Functions: Antimicrobial, Deodorant, Oral care, Antistatic
Identifier: DTXSID20975463

> 1-Hexadecylpyridin-1-ium chloride--water (1/1/1): Used in cosmetics as an antimicrobial, a deodorant and an oral-care ingredient. Cetylpyridinium Chloride is a quaternary ammonium salt. EPA CPDat observed this chemical in 7 composition records across product categories including Personal care, Laboratory supplies, Electronics/small appliances. Compiled from 3 published data sources.

## Safety assessment

- Chemical concern: not yet assessed
- Is it a concern? We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.
- Rationale: EPA CPDat observed this chemical in 7 composition records across product categories including Personal care, Laboratory supplies, Electronics/small appliances.

## Regulatory status

- EU: Active — Cetylpyridinium Chloride is a quaternary ammonium salt that conforms generally to the formula
- US: commercial use observed — EPA CPDat observed this chemical in 7 composition records across product categories including Personal care, Laboratory supplies, Electronics/small appliances.

## Expert safety opinions

- SCCS (EU Scientific Committee on Consumer Safety): no opinion on file.
- CIR (Cosmetic Ingredient Review (US expert panel)): no opinion on file.

## Data sources

- CosIng (updated 2026-09-23): https://ec.europa.eu/growth/tools-databases/cosing/details/32626
- EPA Chemical and Products Database (updated 4 December 2007): http://siri.org/msds/f2/bxw/bxwjj.html
- EPA DSSTox Identifiers (updated 2025-12-29): https://epa.figshare.com/articles/dataset/Chemistry_Dashboard_Data_DSSTox_Identifiers_Mapped_to_CAS_Numbers_and_Names/5588566

_Assessed by Greenveil._