What other records share CAS 5205-32-3?

CAS 5205-32-3 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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InventoryRef 8694815/10/2010

OCTATRIENOIC ACID

OCTATRIENOIC ACID 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 5205-32-3

CAS 5205-32-3PubChem CID 5368831

Octa-2,4,6-trienoic acid

octa-2,4,6-trienoic acid has been reported in Deschampsia antarctica with data available. — LOTUS - the natural products occurrence database

IUPAC name: (2E,4E,6E)-octa-2,4,6-trienoic acid

Molecular formula: C8H10O2
Molecular weight: 138.16 g/mol
Exact mass: 138.068079557 Da
XLogP3: 2.0
Topological polar surface area: 37.3 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

2,4,6-Octatrienoic acidOctatrienoic acid(E,E,E)-2,4,6-Octatrienoic acid2,4,6-Octatrienoic acid, (E,E,E)-702XZO95X42,4,6-Octatrienoic acid, (2E,4E,6E)-NSC 16188LGD1550

7 more reported names

RefChem:855427OCTATRIENOIC ACID [INCI]CHEBI:25654622-483-2UNII-702XZO95X4IAAPVNQZSBLWKH-ICDJNDDTSA-N(2E,4E,6E)-2,4,6-Octatrienoic acid #

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External database identifiers

ChEMBL:CHEMBL1208330
EPA DTXSID:DTXSID20242869
PubMed:16951191

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 OCTATRIENOIC ACID

INCI name

OCTATRIENOIC ACID

Record provenance

Inventory reference: 86948
Imported identity: OCTATRIENOIC ACID
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for OCTATRIENOIC ACID

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Key data

CAS

5205-32-3

—

Restriction

—

Function

ANTIOXIDANT: Inhibiting reactions promoted by oxygen, thus avoiding oxidation and rancidity.

Official EU ingredient-name evidence

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

#17794 · OCTATRIENOIC ACID

Ingredients with overlapping formulation functions

OCIMUM TENUIFLORUM CALLUS CULTURE LYSATEANTIOXIDANT, HAIR CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SKIN CONDITIONING - HUMECTANT, SLIP …

OCTADECYL DI-T-BUTYL-4-HYDROXYHYDROCINNAMATEANTIOXIDANT

OCTANICOTINOYL EPIGALLOCATECHIN GALLATEANTIOXIDANT

OCTAPEPTIDE-15ANTIOXIDANT, REDUCING, SKIN PROTECTING

OENANTHE JAVANICA CALLUS EXTRACTANTIOXIDANT; HUMECTANT

OENOTHERA BIENNIS CALLUS LYSATEANTIOXIDANT

OENOTHERA BIENNIS EXTRACTANTIOXIDANT, SKIN CONDITIONING - MISCELLANEOUS, SKIN PROTECTING

OENOTHERA ROSEA EXTRACTANTIOXIDANT, SKIN PROTECTING

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 OCTATRIENOIC ACID appears in the CosIng inventory

The CosIng inventory lists OCTATRIENOIC 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.

OCTATRIENOIC ACID 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

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

ANTIOXIDANT

CAS 5205-32-3 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.

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Source note for OCTATRIENOIC ACID

This page reproduces the CosIng inventory entry for OCTATRIENOIC 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 OCTATRIENOIC ACID 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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