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CAS 693-33-4

CAS 693-33-4 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 693-33-4
CAS 693-33-4PubChem CID 93554

n-(carboxymethyl)-n,n-dimethyl-1-hexadecanaminium hydroxide, inner salt

The CIR Expert Panel concluded that the eleven alkyl betaines listed below are safe in the present practices of use and concentration in cosmetics, when formulated to be non-irritating...Cetyl Betaine... — Cosmetic Ingredient Review (CIR)

IUPAC name
2-[hexadecyl(dimethyl)azaniumyl]acetate
Molecular formula
C20H41NO2
Molecular weight
327.5 g/mol
Exact mass
327.313729551 Da
XLogP3
8.3
Topological polar surface area
40.1 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

Cetyl betainePalmityldimethylbetaine1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt(Carboxylatomethyl)hexadecyldimethylammoniumEINECS 211-748-4BRN 3676787AMPHOSOL CDBMACKAM CET
16 more reported names
E945X08YA91-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, hydroxide, inner saltHEXADECYLDIMETHYLBETAINEAmmonium, (carboxymethyl)hexadecyldimethyl-, hydroxide, inner saltN-(Carboxymethyl)-N,N-dimethyl-1-hexadecanaminium hydroxide inner salt(Carboxymethyl)hexadecyldimethylammonium hydroxide, inner saltRefChem:828379CETYL BETAINE [INCI](Carboxymethyl)hexadecyldimethylammonium hydroxide, inner salt (7CI)Ammonium, (carboxymethyl)hexadecyldimethyl-, hydroxide, inner salt (8CI)HexadecylbetaineLonzaine 16SC16BETN,N-Dimethyl-N-hexadecylglycineUNII-E945X08YA9TYIOVYZMKITKRO-UHFFFAOYSA-N
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External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 693-33-4

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How CAS 693-33-4 is used on this site

CAS 693-33-4 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share 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 693-33-4 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.