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CAS 24625-03-4 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 3449415/10/2010

HYDROXYETHYL CETYLDIMONIUM CHLORIDE

Hexadecyl(2-hydroxyethyl)dimethylammonium chloride

HYDROXYETHYL CETYLDIMONIUM CHLORIDE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 24625-03-4

CAS 24625-03-4PubChem CID 168188

Hydroxyethyl cetyldimonium chloride

IUPAC name: hexadecyl-(2-hydroxyethyl)-dimethylazanium chloride

Molecular formula: C20H44ClNO
Molecular weight: 350.0 g/mol
Exact mass: 349.3111427 Da
Topological polar surface area: 20.2 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 2
Covalent units: 2
Defined stereocentres: 0

Also known as

Quaternium-4473JQ08D7ITEINECS 246-369-3Ammonium, hexadecyl(2-hydroxyethyl)dimethyl-, chloride1-HEXADECANAMINIUM, N-(2-HYDROXYETHYL)-N,N-DIMETHYL-, CHLORIDE (1:1)Dimethyl hydroxyethyl cetyl ammonium chloride1-Hexadecanaminium, N-(2-hydroxyethyl)-N,N-dimethyl-, chlorideCetyl dimethyl hydroxyethyl ammonium chloride

12 more reported names

Hexadecyl(2-hydroxyethyl)dimethyl ammonium chlorideCETYL(2-HYDROXYETHYL)DIMETHYLAMMONIUM CHLORIDECETYLDIMETHYL-2-HYDROXYETHYLAMMONIUM CHLORIDERefChem:789467HYDROXYETHYL CETYLDIMONIUM CHLORIDE [INCI]n-(2-hydroxyethyl)-n,n-dimethylhexadecan-1-aminium chlorideHexadecyl(2-hydroxyethyl)dimethylammonium chloridehexadecyl-(2-hydroxyethyl)-dimethylazanium;chlorideUNII-73JQ08D7ITCGFLXNWWUXLUIX-UHFFFAOYSA-M2-(hexadecyldimethylamino)ethan-1-ol, chlorideN,N-dimethyl-N-cetyl-N-(2-hydroxyethyl)-ammonium chloride salt

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External database identifiers

EPA DTXSID:DTXSID20947524

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

Inventory details for HYDROXYETHYL CETYLDIMONIUM CHLORIDE

INCI name

HYDROXYETHYL CETYLDIMONIUM CHLORIDE

Description

Hexadecyl(2-hydroxyethyl)dimethylammonium chloride

Record provenance

Inventory reference: 34494
Imported identity: HYDROXYETHYL CETYLDIMONIUM CHLORIDE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for HYDROXYETHYL CETYLDIMONIUM CHLORIDE

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Key data

CAS

24625-03-4

246-369-3

Restriction

—

Function

ANTISTATIC: Preventing and/or reducing static electricity by neutralising electrical charge on surfaces.
HAIR CONDITIONING: Enhancing the appearance and feel of hair. Leaving the hair easy to comb, supple, soft and shiny and/or imparting volume, lightness, gloss, texture, etc.
SURFACTANT - CLEANSING: Wetting body surfaces, emulsifying or solubilizing oils, and suspending soil (generally, such ingredients contribute to the foaming and lathering properties of cleansing products).

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#13242 · HYDROXYETHYL CETYLDIMONIUM CHLORIDE

Ingredients with overlapping formulation functions

HYDROLYZED ZEINANTISTATIC, HAIR CONDITIONING, SKIN CONDITIONING

HYDROXYCETYL HYDROXYETHYL DIMONIUM CHLORIDEANTISTATIC, HAIR CONDITIONING

HYDROXYETHYL BEHENAMIDOPROPYL DIMONIUM CHLORIDEANTISTATIC, HAIR CONDITIONING

HYDROXYETHYL CETEARAMIDOPROPYLDIMONIUM CHLORIDEANTISTATIC, HAIR CONDITIONING, SKIN CONDITIONING

HYDROXYETHYL CETYLDIMONIUM PHOSPHATEANTISTATIC, HAIR CONDITIONING, SURFACTANT - CLEANSING

HYDROXYETHYL DIPHENYL IMIDAZOLINEANTISTATIC, HAIR CONDITIONING

HYDROXYETHYL ERUCAMIDOPROPYL DIMONIUM CHLORIDEANTISTATIC, HAIR CONDITIONING

HYDROXYETHYL LAURDIMONIUM CHLORIDEANTISTATIC, HAIR CONDITIONING

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox 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

How HYDROXYETHYL CETYLDIMONIUM CHLORIDE appears in the CosIng inventory

The CosIng inventory lists HYDROXYETHYL CETYLDIMONIUM CHLORIDE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

HYDROXYETHYL CETYLDIMONIUM CHLORIDE is also tagged with 3 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

HYDROXYETHYL CETYLDIMONIUM CHLORIDE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, HYDROXYETHYL CETYLDIMONIUM CHLORIDE carries the following function designation(s):

CAS 24625-03-4 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Source note for HYDROXYETHYL CETYLDIMONIUM CHLORIDE

This page reproduces the CosIng inventory entry for HYDROXYETHYL CETYLDIMONIUM CHLORIDE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research HYDROXYETHYL CETYLDIMONIUM CHLORIDE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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