Is OLEAMINE OXIDE safe to use in EU cosmetics?

OLEAMINE OXIDE 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 function does OLEAMINE OXIDE serve in cosmetics?

According to the EU CosIng inventory, OLEAMINE OXIDE carries the following function designation(s): ANTISTATIC, CLEANSING, HAIR CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - FOAM BOOSTING, SURFACTANT - HYDROTROPE.

What other records share CAS 14351-50-9?

CAS 14351-50-9 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 OLEAMINE OXIDE?

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 7790515/10/2010

OLEAMINE OXIDE

N,N-Dimethyl-9-(Z)-octadecenamine-N-oxide

OLEAMINE OXIDE 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 14351-50-9

CAS 14351-50-9PubChem CID 6435847

N,N-Dimethyl-9-octadecen-1-amine-N-oxide

IUPAC name: (Z)-N,N-dimethyloctadec-9-en-1-amine oxide

Molecular formula: C20H41NO
Molecular weight: 311.5 g/mol
Exact mass: 311.318814931 Da
XLogP3: 7.6
Topological polar surface area: 18.1 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 1
Covalent units: 1
Defined stereocentres: 0

Also known as

Oleamine oxideN,N-Dimethyloleyl N-oxideoleyldimethylamine oxideOleyl dimethyl amine oxideMV4MNS120PN,N-Dimethyloleylamine oxide9-Octadecen-1-amine, N,N-dimethyl-, N-oxideUNIMOX OL

11 more reported names

MACKAMINE O2EINECS 238-311-09-Octadecen-1-amine, N,N-dimethyl-, N-oxide, (Z)-9-Octadecen-1-amine, N,N-dimethyl-, N-oxide, (9Z)-RefChem:822524OLEAMINE OXIDE [INCI]UNII-MV4MNS120PQCTZUSWOKFCWNB-QXMHVHEDSA-NDimethyl[(9Z)-octadec-9-en-1-yl]amine oxide(9Z)-N,N-Dimethyloctadec-9-en-1-amine N-oxide9-Octadecen-1-amine,N,N-dimethyl-, N-oxide, (9Z)-

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID6051722

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 OLEAMINE OXIDE

INCI name

OLEAMINE OXIDE

Description

N,N-Dimethyl-9-(Z)-octadecenamine-N-oxide

Record provenance

Inventory reference: 77905
Imported identity: OLEAMINE OXIDE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for OLEAMINE OXIDE

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Key data

CAS

14351-50-9

238-311-0

Restriction

—

Function

ANTISTATIC: Preventing and/or reducing static electricity by neutralising electrical charge on surfaces.
CLEANSING: Helping to keep the body surface clean.
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 - FOAM BOOSTING: Increasing foaming capacity and/or stabilizing foams in general.
SURFACTANT - HYDROTROPE: Enhancing the water solubility of another surfactant.

Official EU ingredient-name evidence

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

#17955 · OLEAMINE OXIDE

Ingredients with overlapping formulation functions

NONOXYNOL-4 PHOSPHATESURFACTANT - EMULSIFYING; SURFACTANT - HYDROTROPE; SURFACTANT - CLEANSING

NONOXYNOL-6 PHOSPHATESURFACTANT - EMULSIFYING; SURFACTANT - HYDROTROPE; SURFACTANT - CLEANSING

NONOXYNOL-9 PHOSPHATESURFACTANT - EMULSIFYING; SURFACTANT - HYDROTROPE; SURFACTANT - CLEANSING

OLEAMIDOPROPYLAMINE OXIDEANTISTATIC, CLEANSING, HAIR CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - FOAM BOOSTING, SURFA…

OLIVAMIDOPROPYLAMINE OXIDECLEANSING, HAIR CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - FOAM BOOSTING, SURFACTANT - HYDR…

PALMITAMIDOPROPYLAMINE OXIDEANTISTATIC, CLEANSING, HAIR CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - FOAM BOOSTING, SURFA…

PALMITAMINE OXIDEANTISTATIC, CLEANSING, HAIR CONDITIONING, SURFACTANT - CLEANSING, SURFACTANT - FOAM BOOSTING, SURFA…

PEG-16 CASTOR OIL OLEATESURFACTANT - EMULSIFYING; SURFACTANT - HYDROTROPE; SURFACTANT - SOLUBILIZING

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 OLEAMINE OXIDE appears in the CosIng inventory

The CosIng inventory lists OLEAMINE OXIDE 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.

OLEAMINE OXIDE is also tagged with 6 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

OLEAMINE OXIDE 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, OLEAMINE OXIDE carries the following function designation(s):

CAS 14351-50-9 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 OLEAMINE OXIDE

This page reproduces the CosIng inventory entry for OLEAMINE OXIDE 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 OLEAMINE OXIDE 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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