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InventoryRef 5636915/10/2010

HEXADECENOIC ACID

Cis-6-Hexadecenoic Acid

HEXADECENOIC ACID 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 17004-51-2
CAS 17004-51-2PubChem CID 5312419

Sapienic acid

Sapienic acid is a hexadecenoic acid in which the double bond is located at position 6 (the Z-geoisomer). A major component of human sebaceous lipids that is involved in skin self-sterilisation and atopic dermatitis amelioration. It has a role as a metabolite, an antibacterial agent and an antipsoriatic. It is a conjugate acid of a sapienate. ChEBI

IUPAC name
(Z)-hexadec-6-enoic acid
Molecular formula
C16H30O2
Molecular weight
254.41 g/mol
Exact mass
254.224580195 Da
XLogP3
6.2
Topological polar surface area
37.3 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

6Z-hexadecenoic acid(6Z)-hexadec-6-enoic acid16:1omega106460S1EJ28UNII-6460S1EJ28(6Z)-Hexadecenoic acidC16:1n-10CHEBI:76244
13 more reported names
16:1.OMEGA.10Hexadecenoic Acid cisFatty Acid 16:1 cisRefChem:18122016:1 Omega-10cis-6-Hexadecenoic acid6-Hexadecenoic acid, (6Z)-Lunac HD6-Hexadecenoic acid, (Z)-8Z9DA-67403HY-130187CS-0105451
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 HEXADECENOIC ACID

INCI name

HEXADECENOIC ACID

Description

Cis-6-Hexadecenoic Acid

Record provenance

Inventory reference
56369
Imported identity
HEXADECENOIC ACID
Source update
15/10/2010
European Commission CosIng source notes

Key data

EC
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.

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 HEXADECENOIC ACID appears in the CosIng inventory

The CosIng inventory lists HEXADECENOIC ACID 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.

HEXADECENOIC ACID is also tagged with 2 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

HEXADECENOIC ACID 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, HEXADECENOIC ACID carries the following function designation(s):

CAS 17004-51-2 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 HEXADECENOIC ACID

This page reproduces the CosIng inventory entry for HEXADECENOIC ACID 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 HEXADECENOIC ACID 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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