Official EU label nameGlossary entry 5968

CETYL BETAINE

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

0 markets with evidence

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Markets with evidence

Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:693-33-4

EC:211-748-4

Ingredient index records:

CETYL BETAINE

Cosmetic functions: ANTISTATIC, CLEANSING, HAIR CONDITIONING, SKIN CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - FOAM BOOSTING, VISCOSITY CONTROLLING

(Carboxylatomethyl)hexadecyldimethylammonium

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1 matched or reported name

CETYL BETAINE

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name CETYL BETAINE.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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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 Å²
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

EPA DTXSID:DTXSID8027298

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

Additional authoritative substance research

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal US EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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