What function does CETRIMONIUM TOSYLATE serve in cosmetics?

According to the EU CosIng inventory, CETRIMONIUM TOSYLATE carries the following function designation(s): ANTIMICROBIAL, ANTISTATIC, HAIR CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING.

What other records share CAS 138-32-9?

CAS 138-32-9 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.

How do I check if my formula contains CETRIMONIUM TOSYLATE?

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InventoryRef 3259315/10/2010

CETRIMONIUM TOSYLATE

Hexadecyltrimethylammonium toluene-p-sulphonate

CETRIMONIUM TOSYLATE 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 138-32-9

CAS 138-32-9PubChem CID 9868636

Trimethylcetylammonium p-toluenesulfonate

IUPAC name: hexadecyl(trimethyl)azanium;4-methylbenzenesulfonate

Molecular formula: C26H49NO3S
Molecular weight: 455.7 g/mol
Exact mass: 455.34331560 Da
Topological polar surface area: 65.6 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 3
Covalent units: 2
Defined stereocentres: 0

Also known as

Cetyltrimethylammonium p-toluenesulfonateN,N,N-Trimethyl-1-hexadecanaminium, salt with 4-methylbenzenesulfonic acid (1:1)RefChem:575373Cetrimonium tosylate1-Hexadecanaminium, N,N,N-trimethyl-, 4-methylbenzenesulfonate (1:1)Hexadecyltrimethylammonium p-toluenesulfonateN,N,N-Trimethylhexadecan-1-aminium 4-methylbenzenesulfonatecetyltrimethylammonium tosylate

16 more reported names

Hexadecyltrimethylammonium toluene-p-sulphonate1P489GK6ARhexadecyltrimethylazanium 4-methylbenzene-1-sulfonate1-Hexadecanaminium, N,N,N-trimethyl-, salt with 4-methylbenzenesulfonic acid (1:1)cetatsTRICETOLUNII-1P489GK6ARHexadecyltrimethylammonium p-toluolsulfonateSterilene (TN)Cetrimonium tosilateEINECS 205-324-8CTAOTOSQUATROLHexadecyltrimethylammonium (p-toluenesulfonate)C26H49NO3SMZMRZONIDDFOGF-UHFFFAOYSA-M

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID50883325

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 CETRIMONIUM TOSYLATE

INCI name

CETRIMONIUM TOSYLATE

Description

Hexadecyltrimethylammonium toluene-p-sulphonate

Record provenance

Inventory reference: 32593
Imported identity: CETRIMONIUM TOSYLATE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for CETRIMONIUM TOSYLATE

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Key data

CAS

138-32-9

205-324-8

Restriction

—

Function

ANTIMICROBIAL: Preventing and/or slowing down microbial growth.
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).
SURFACTANT - EMULSIFYING: Helping suspensions or dispersions of liquids in a second liquid by reducing the surface tension of the substances to be emulsified.

Official EU ingredient-name evidence

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

#5957 · CETRIMONIUM TOSYLATE

Ingredients with overlapping formulation functions

CETRIMONIUM BROMIDEANTIMICROBIAL, ANTISTATIC, PRESERVATIVE, SURFACTANT - EMULSIFYING

CETRIMONIUM CHLORIDEANTIMICROBIAL, ANTISTATIC, PRESERVATIVE, SURFACTANT - EMULSIFYING

CETRIMONIUM METHOSULFATEANTIMICROBIAL, ANTISTATIC, HAIR CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

CETRIMONIUM SACCHARINATEANTIMICROBIAL, ANTISTATIC, HAIR CONDITIONING

CETYL RICINOLEATE BENZOATEANTIMICROBIAL, SKIN CONDITIONING

CETYLDIMONIUMETHYL TRIETHOXYSILYLPROPYLDIMONIUM CHLORIDEANTIMICROBIAL

CETYLPYRIDINIUM CHLORIDEANTIMICROBIAL, ANTISTATIC, DEODORANT, HAIR CONDITIONING, ORAL CARE, SURFACTANT - CLEANSING, SURFACT…

CHAETOMORPHA SOLITARIA CALLUS CULTURE EXTRACTANTIMICROBIAL, ANTIOXIDANT, HAIR CONDITIONING, SKIN PROTECTING

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 CETRIMONIUM TOSYLATE appears in the CosIng inventory

The CosIng inventory lists CETRIMONIUM TOSYLATE 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.

CETRIMONIUM TOSYLATE is also tagged with 5 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

CETRIMONIUM TOSYLATE 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, CETRIMONIUM TOSYLATE carries the following function designation(s):

CAS 138-32-9 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 CETRIMONIUM TOSYLATE

This page reproduces the CosIng inventory entry for CETRIMONIUM TOSYLATE 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 CETRIMONIUM TOSYLATE 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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Tools & next steps

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