What other records share CAS 19093-20-0?

CAS 19093-20-0 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 4052902/03/2011

TRANS-5-OCTENONE

(E)-Oct-5-en-2-one

TRANS-5-OCTENONE 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 19093-20-0

CAS 19093-20-0PubChem CID 6436498

(E)-oct-5-en-2-one

IUPAC name: (E)-oct-5-en-2-one

Molecular formula: C8H14O
Molecular weight: 126.20 g/mol
Exact mass: 126.104465066 Da
XLogP3: 1.7
Topological polar surface area: 17.1 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 1
Covalent units: 1
Defined stereocentres: 0

Also known as

5-Octen-2-one, (E)-5-Octen-2-one, (5E)-7G1EAO17NVEINECS 242-810-9RefChem:406408(5E)-5-Octen-2-one242-810-9(5E)-OCT-5-EN-2-ONE

6 more reported names

OCT-5-EN-2-ONE(E)-5-octen-2-oneUNII-7G1EAO17NVtrans-5- Octen-2-onEN300-1869712EN300-7465251

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID4051829

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 TRANS-5-OCTENONE

INCI name

TRANS-5-OCTENONE

Description

(E)-Oct-5-en-2-one

Record provenance

Inventory reference: 40529
Imported identity: TRANS-5-OCTENONE
Source update: 02/03/2011

European Commission CosIng source notes

Annex records for TRANS-5-OCTENONE

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Key data

CAS

19093-20-0

242-810-9

Restriction

—

Function

PERFUMING: Used for perfume and aromatic raw materials.

Ingredients with overlapping formulation functions

TRANS-3-HEXENALPERFUMING

TRANS-3-HEXENYL ISOBUTYRATEPERFUMING

TRANS-3-METHYL-5-PHENYL-2-PENTENENITRILEPERFUMING

TRANS-5-METHYL-2-HEPTEN-4-ONEPERFUMING

TRANS-8-METHYL-1-OXASPIRODECANONEPERFUMING

TRANS-CINNAMONITRILEPERFUMING

TRANS-DIHYDROPSEUDOIONYL ACETATEPERFUMING

TRANS-DIMETHYLBICYCLOHEPT-2-YLIDENE-ETHYL ACETATEPERFUMING

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 TRANS-5-OCTENONE appears in the CosIng inventory

The CosIng inventory lists TRANS-5-OCTENONE 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.

TRANS-5-OCTENONE 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

TRANS-5-OCTENONE 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, TRANS-5-OCTENONE carries the following function designation(s):

PERFUMING

CAS 19093-20-0 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 TRANS-5-OCTENONE

This page reproduces the CosIng inventory entry for TRANS-5-OCTENONE 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 TRANS-5-OCTENONE 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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