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InventoryRef 3558115/10/2010

OCTADECANE

Octadecane

OCTADECANE 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 593-45-3
CAS 593-45-3PubChem CID 11635

Octadecane

Octadecane is a straight-chain alkane carrying 18 carbon atoms. It has a role as a plant metabolite and a bacterial metabolite. ChEBI

IUPAC name
octadecane
Molecular formula
C18H38
Molecular weight
254.5 g/mol
Exact mass
254.297351212 Da
XLogP3
9.3
Topological polar surface area
0.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
0
Covalent units
1
Defined stereocentres
0

Also known as

n-OctadecaneN102P6HAIUNSC-4201CHEBI:32926RefChem:6081octadecane, 14C-labeled cpd209-790-3Octadecan
16 more reported names
Octadecane, n-TS Paraffin TS 8Octadecane, 99%NSC 4201EINECS 209-790-31-(4-Chlorophenyl)-1,3-dihydro-2H-indol-2-oneAI3-06523CH3-[CH2]16-CH3CACTUS NORMAL PARAFFIN TS 8HY-N6600Octadecane, analytical standardC18H38UNII-N102P6HAIUOktadekanCCRIS 681EC 209-790-3
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 OCTADECANE

INCI name

OCTADECANE

Description

Octadecane

Record provenance

Inventory reference
35581
Imported identity
OCTADECANE
Source update
15/10/2010
European Commission CosIng source notes

Key data

Restriction
Function
PERFUMING
Used for perfume and aromatic raw materials.
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.
SOLVENT
Dissolving other components of cosmetics. Solvents are usually liquids (aqueous and nonaqueous).

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 OCTADECANE appears in the CosIng inventory

The CosIng inventory lists OCTADECANE 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.

OCTADECANE is also tagged with 4 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

OCTADECANE 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, OCTADECANE carries the following function designation(s):

CAS 593-45-3 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 OCTADECANE

This page reproduces the CosIng inventory entry for OCTADECANE 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 OCTADECANE 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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