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CAS 71011-27-3 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 7923915/10/2010

QUATERNIUM-18 HECTORITE

Quaternary ammonium compounds, bis(hydrogenated tallow alkyl)dimethyl, chlorides, compds. with hectorite

QUATERNIUM-18 HECTORITE 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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Exact external identity check

matched

One PubChem compound was retained because the exact CosIng name appears among its reported synonyms.

PubChem title: Quaternium-18 Hectorite
IUPAC name: lithium;magnesium;sodium;1,3,5,7-tetraoxido-2,4,6,8,9,10-hexaoxa-1,3,5,7-tetrasilatricyclo[5.1.1.13,5]decane;hydroxide
Molecular formula: HLiMgNaO11Si4-
Molecular weight: 343.6 g/mol
InChIKey: RMTHHIHNJMQBBK-UHFFFAOYSA-M

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Exact CosIng INCI name equals a PubChem synonym · Checked 2026-08-31

Inventory details for QUATERNIUM-18 HECTORITE

INCI name

QUATERNIUM-18 HECTORITE

Description

Quaternary ammonium compounds, bis(hydrogenated tallow alkyl)dimethyl, chlorides, compds. with hectorite

Record provenance

Inventory reference: 79239
Imported identity: QUATERNIUM-18 HECTORITE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for QUATERNIUM-18 HECTORITE

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Key data

CAS

71011-27-3

275-128-5

Restriction

—

Function

VISCOSITY CONTROLLING: Increasing or decreasing the viscosity (thickness) of cosmetics.

Official EU ingredient-name evidence

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

#23840 · QUATERNIUM-18 HECTORITE

Ingredients with overlapping formulation functions

PYRUS CYDONIA PEEL/FRUIT WAXSKIN CONDITIONING, VISCOSITY CONTROLLING

PYRUS CYDONIA SEEDABRASIVE, SKIN CONDITIONING, VISCOSITY CONTROLLING

PYRUS MALUS FIBERABRASIVE, BINDING, EMULSION STABILISING, VISCOSITY CONTROLLING

QUATERNIUM-18 BENTONITEVISCOSITY CONTROLLING

QUATERNIUM-18/BENZALKONIUM BENTONITEVISCOSITY CONTROLLING

QUATERNIUM-90 BENTONITEVISCOSITY CONTROLLING

QUATERNIUM-90 MONTMORILLONITESURFACTANT - EMULSIFYING, VISCOSITY CONTROLLING

QUATERNIUM-90 SEPIOLITEEMULSION STABILISING, VISCOSITY CONTROLLING

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 QUATERNIUM-18 HECTORITE appears in the CosIng inventory

The CosIng inventory lists QUATERNIUM-18 HECTORITE 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.

QUATERNIUM-18 HECTORITE is also tagged with 1 cosmetic function 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

QUATERNIUM-18 HECTORITE 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, QUATERNIUM-18 HECTORITE carries the following function designation(s):

VISCOSITY CONTROLLING

CAS 71011-27-3 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 QUATERNIUM-18 HECTORITE

This page reproduces the CosIng inventory entry for QUATERNIUM-18 HECTORITE 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 QUATERNIUM-18 HECTORITE 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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