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InventoryRef 7458815/10/2010

BEHENTRIMONIUM METHOSULFATE

Docosyltrimethylammonium methyl sulphate

BEHENTRIMONIUM METHOSULFATE 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.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 81646-13-1

CAS 81646-13-1PubChem CID 157846

Behentrimonium Methosulfate

The CIR Expert Panel concluded the following ingredients are safe in the present practices of use and concentration described in the safety assessment when formulated to be non-irritating...Behentrimonium Methosulfate... — Cosmetic Ingredient Review (CIR)

IUPAC name: docosyl(trimethyl)azanium;methyl sulfate

Molecular formula: C26H57NO4S
Molecular weight: 479.8 g/mol
Exact mass: 479.40083047 Da
Topological polar surface area: 74.8 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 4
Covalent units: 2
Defined stereocentres: 0

Also known as

Docosyltrimethylammonium methyl sulphate5SHP745C61EINECS 279-791-1Behenyl trimethyl ammonium methosulfateBEHENTRIMONIUM METHOSULPHATEEC 279-791-1behenyltrimethylammonium methyl sulfateN,N,N-Trimethyl-1-docosanaminium methosulfate

14 more reported names

BEHENYL TRIMETHYL AMMONIUM METHOSULPHATE1-Docosanaminium, N,N,N-trimethyl-, methosulfateRefChem:561202BEHENTRIMONIUM METHOSULFATE [INCI]N,N,N-trimethyldocosan-1-aminium methyl sulfateUNII-5SHP745C61docosyl-trimethyl-azanium; sulfonatooxymethaneMaquat BTMSdocosyl(trimethyl)azanium,methyl sulfateC26H57NO4SQIVLQXGSQSFTIF-UHFFFAOYSA-Mdocosyl(trimethyl)ammonium;methyl sulfateDB-230299Docosyltrimethylammonium methyl sulphate;1-Docosanaminium, N,N,N-trimethyl-, methyl sulfate;docosyl-triMethyl-azaniuM;Behenyl trimethyl ammonium methyl sulfate

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID00231231

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 BEHENTRIMONIUM METHOSULFATE

INCI name

BEHENTRIMONIUM METHOSULFATE

Description

Docosyltrimethylammonium methyl sulphate

Record provenance

Inventory reference: 74588
Imported identity: BEHENTRIMONIUM METHOSULFATE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for BEHENTRIMONIUM METHOSULFATE

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Key data

CAS

81646-13-1 / 241148-21-0

279-791-1

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.

#3162 · BEHENTRIMONIUM METHOSULFATE

Ingredients with overlapping formulation functions

BEHENAMIDOPROPYL ETHYLDIMONIUM ETHOSULFATEANTISTATIC, HAIR CONDITIONING

BEHENAMIDOPROPYL PG-DIMONIUM CHLORIDEANTISTATIC, HAIR CONDITIONING

BEHENOYL PG-TRIMONIUM CHLORIDEANTISTATIC, HAIR CONDITIONING

BEHENTRIMONIUM CHLORIDEANTISTATIC, HAIR CONDITIONING, PRESERVATIVE

BEHENYL BETAINEANTISTATIC, CLEANSING, HAIR CONDITIONING, SKIN CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - F…

BEHENYL HYDROXYETHYL IMIDAZOLINEANTISTATIC, HAIR CONDITIONING

BEHENYL PG-TRIMONIUM CHLORIDEANTISTATIC, HAIR CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

BENZALKONIUM BROMIDEANTIMICROBIAL, ANTISTATIC, DEODORANT, PRESERVATIVE, SURFACTANT - CLEANSING

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 BEHENTRIMONIUM METHOSULFATE appears in the CosIng inventory

The CosIng inventory lists BEHENTRIMONIUM METHOSULFATE 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.

BEHENTRIMONIUM METHOSULFATE 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

BEHENTRIMONIUM METHOSULFATE 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, BEHENTRIMONIUM METHOSULFATE carries the following function designation(s):

CAS 81646-13-1 / 241148-21-0 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 BEHENTRIMONIUM METHOSULFATE

This page reproduces the CosIng inventory entry for BEHENTRIMONIUM METHOSULFATE 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 BEHENTRIMONIUM METHOSULFATE 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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