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InventoryRef 3834115/10/2010

STEARYL STEARATE

Octadecyl stearate

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

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.

Chemical identity and properties

PubChem 2D chemical structure for CAS 2778-96-3
CAS 2778-96-3PubChem CID 17720

Stearyl Stearate

The CIR Expert Panel concluded that the alkyl esters, listed subsequently, are safe in the present practices of use and concentration described in this safety assessment when formulated to be non-irritating. Cosmetic Ingredient Review (CIR)

IUPAC name
octadecyl octadecanoate
Molecular formula
C36H72O2
Molecular weight
537.0 g/mol
Exact mass
536.55323154 Da
XLogP3
17.4
Topological polar surface area
26.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

Octadecyl stearateOctadecanoic acid, octadecyl esterStearic acid, stearyl esteroctadecanyl octadecanoate5WX2EGD0DKStearic acid octadecyl esterOctadecanoic acid octadecyl esterRefChem:185427
16 more reported names
220-476-5Cyclochem SSStearic acid stearyl esterUNII-5WX2EGD0DKStearic acid, octadecyl esterLiponate SSRitachol SSLexol SSOctadecanoyic acid, octadecyl esterEINECS 220-476-5Hetester 412Emalex CC-18Loxiol G 30FE 78-181-Octadecyl octadecanoateStearyl stearate, ~99%
External database identifiers

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 STEARYL STEARATE

INCI name

STEARYL STEARATE

Description

Octadecyl stearate

Record provenance

Inventory reference
38341
Imported identity
STEARYL STEARATE
Source update
15/10/2010
European Commission CosIng source notes

Key data

Restriction
Function
SKIN CONDITIONING
Maintaining the skin in good condition.
SKIN CONDITIONING - EMOLLIENT
Acting as lubricants on the skin surface providing the skin with a soft and smooth appearance.
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.

Ingredients with overlapping formulation functions

Additional official and scientific sources

11 external databases to check this identity in

How STEARYL STEARATE appears in the CosIng inventory

The CosIng inventory lists STEARYL STEARATE 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.

STEARYL STEARATE 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

STEARYL STEARATE 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, STEARYL STEARATE carries the following function designation(s):

CAS 2778-96-3 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.

Use the INCI Checker to screen a full ingredient list across selected markets, or compare this substance across all supported market datasets.

Source note for STEARYL STEARATE

This page reproduces the CosIng inventory entry for STEARYL STEARATE 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 STEARYL STEARATE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

Tools & next steps

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