Is OLEYL STEARATE safe to use in EU cosmetics?

OLEYL STEARATE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Always verify against the current official CosIng database before formulating.

What other records share CAS 17673-50-6?

CAS 17673-50-6 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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Use the INCI Checker to screen a full ingredient list across selected markets, or use the substance market comparison to review this identity across all supported market datasets.

InventoryRef 7803715/10/2010

OLEYL STEARATE

(Z)-Octadec-9-enyl octadecanoate

OLEYL STEARATE 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 17673-50-6

CAS 17673-50-6PubChem CID 5367704

Oleyl Stearate

Oleyl stearate is a wax ester. — ChEBI

IUPAC name: [(Z)-octadec-9-enyl] octadecanoate

Molecular formula: C36H70O2
Molecular weight: 534.9 g/mol
Exact mass: 534.53758147 Da
XLogP3: 16.4
Topological polar surface area: 26.3 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

Octadecanoic acid, (9Z)-9-octadecen-1-yl esterUNII-D5E6VT6I0Ecis-9-Octadecenyl Stearate9Z-octadecenyl octadecanoateD5E6VT6I0EOctadecanoic acid, 9-octadecenyl esterStearic acid, 9-octadecenyl ester, (Z)-Octadecanoic acid, 9-octadecenyl ester, (Z)-

16 more reported names

AEC OLEYL STEARATEEINECS 241-652-89-OCTADECEN-1-OL, STEARATE, (Z)-STEARIC ACID, CIS-9-OCTADECENYL ESTERWE(18:1(9Z)/18:0)RefChem:168126OLEYL STEARATE [INCI]241-652-8YYDZACXIVKPEAI-ZPHPHTNESA-N(Z)-Octadec-9-en-1-yl stearate[(E)-octadec-9-enyl] octadecanoateOctadecanoic acid, (9Z)-9-octadecenyl ester(Z)-Octadec-9-enyl stearate(9Z)-octadec-9-en-1-yl octadecanoate(9Z)-9-Octadecenyl stearate #CHEBI:165705

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:165705
EPA DTXSID:DTXSID80884981
PubMed:22058425

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 OLEYL STEARATE

INCI name

OLEYL STEARATE

Description

(Z)-Octadec-9-enyl octadecanoate

Record provenance

Inventory reference: 78037
Imported identity: OLEYL STEARATE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for OLEYL STEARATE

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Key data

CAS

17673-50-6

241-652-8

Restriction

—

Function

SKIN CONDITIONING - EMOLLIENT: Acting as lubricants on the skin surface providing the skin with a soft and smooth appearance.

Official EU ingredient-name evidence

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

#18054 · OLEYL STEARATE

Ingredients with overlapping formulation functions

OLEYL LANOLATEANTISTATIC, SKIN CONDITIONING - EMOLLIENT

OLEYL LINOLEATESKIN CONDITIONING - EMOLLIENT

OLEYL MYRISTATESKIN CONDITIONING - EMOLLIENT

OLEYL OLEATESKIN CONDITIONING - EMOLLIENT

OLEYLDIMONIUM ETHYL BEHENYL PHOSPHATESKIN CONDITIONING - EMOLLIENT

OLIGOPEPTIDE-126 SH-OLIGOPEPTIDE-1HUMECTANT, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

OLIGOPEPTIDE-127 RH-OLIGOPEPTIDE-1SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

OLIGOPEPTIDE-127 RH-OLIGOPEPTIDE-4HUMECTANT, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

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 OLEYL STEARATE appears in the CosIng inventory

The CosIng inventory lists OLEYL 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.

OLEYL STEARATE 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

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

SKIN CONDITIONING - EMOLLIENT

CAS 17673-50-6 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 OLEYL STEARATE

This page reproduces the CosIng inventory entry for OLEYL 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 OLEYL STEARATE 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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