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CAS 1 record

CAS 57-09-0

CAS 57-09-0 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 57-09-0
CAS 57-09-0PubChem CID 5974

Hexadecyltrimethylammonium Bromide

Cetyltrimethylammonium bromide is the organic bromide salt that is the bromide salt of cetyltrimethylammonium; one of the components of the topical antiseptic cetrimide. It has a role as a detergent and a surfactant. It is a quaternary ammonium salt and an organic bromide salt. It contains a cetyltrimethylammonium ion. — ChEBI

IUPAC name
hexadecyl(trimethyl)azanium bromide
Molecular formula
C19H42BrN
Molecular weight
364.4 g/mol
Exact mass
363.25006 Da
Topological polar surface area
0.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
1
Covalent units
2
Defined stereocentres
0

Also known as

Cetrimonium bromideCetyltrimethylammonium bromideBromatCETABCentimideCtmabAcetoquat CTABCee dee
16 more reported names
Cetyl trimethyl ammonium bromideTrimethylcetylammonium bromideBromuro de cetrimonioN-Cetyltrimethylammonium bromideBromure de cetrimoniumCetrimonii bromidumTrimethylhexadecylammonium bromideCetrimonio bromuroN-HEXADECYLTRIMETHYLAMMONIUM BROMIDEPalmityltrimethyl ammonium bromideN,N,N-Trimethyl-1-hexadecanaminium bromideN,N,N-Trimethylcetylammonium bromideSumquat 6030N-Hexadecyl-N,N,N-trimethylammonium bromideL64N7M9BWRNSC-32927
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External database identifiers

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 57-09-0

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How CAS 57-09-0 is used on this site

CAS 57-09-0 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 57-09-0 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.