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CAS 68419-46-5 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 3965402/03/2011

2,7-DIMETHYL-5-OCTEN-4-ONE

2,7-Dimethyloct-5-en-4-one

2,7-DIMETHYL-5-OCTEN-4-ONE 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.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 68419-46-5

CAS 68419-46-5PubChem CID 1738173

5-Octen-4-one, 2,7-dimethyl-

IUPAC name: (E)-2,7-dimethyloct-5-en-4-one

Molecular formula: C10H18O
Molecular weight: 154.25 g/mol
Exact mass: 154.135765193 Da
XLogP3: 2.8
Topological polar surface area: 17.1 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 1
Covalent units: 1
Defined stereocentres: 0

Also known as

2,7-Dimethyl-5-octen-4-one2,7-Dimethyl-oct-5-en-4-one5L2NZP42Y7EINECS 270-267-8NSC 29896NSC-298962,7-DIMETHYL-3-OCTEN-5-ONERefChem:103327

6 more reported names

270-267-82,7-Dimethyloct-5-en-4-one(5E)-2,7-dimethyloct-5-en-4-oneUNII-5L2NZP42Y7CZOUKEVZSCNCAE-AATRIKPKSA-NVS-08707

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External database identifiers

EPA DTXSID:DTXSID6071530

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 2,7-DIMETHYL-5-OCTEN-4-ONE

INCI name

2,7-DIMETHYL-5-OCTEN-4-ONE

Description

2,7-Dimethyloct-5-en-4-one

Record provenance

Inventory reference: 39654
Imported identity: 2,7-DIMETHYL-5-OCTEN-4-ONE
Source update: 02/03/2011

European Commission CosIng source notes

Annex records for 2,7-DIMETHYL-5-OCTEN-4-ONE

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Key data

CAS

68419-46-5

270-267-8

Restriction

—

Function

PERFUMING: Used for perfume and aromatic raw materials.

Ingredients with overlapping formulation functions

2,6-DIMETHYLHEPTANOLPERFUMING

2,6-DIMETHYLPYRAZINEPERFUMING

2,6-XYLENOLPERFUMING

2,7-DIMETHYL-10-ISOPROPYL-1-OXASPIRO-3,6-DECADIENEPERFUMING

2,7-DIMETHYL-6-OCTEN-4-ONEPERFUMING

2-(1-ETHYLPROPYL)PYRIDINEPERFUMING

2-ACETONAPHTHONEFRAGRANCE, PERFUMING

2-BENZYLHEPTANOLFRAGRANCE, PERFUMING

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 2,7-DIMETHYL-5-OCTEN-4-ONE appears in the CosIng inventory

The CosIng inventory lists 2,7-DIMETHYL-5-OCTEN-4-ONE 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.

2,7-DIMETHYL-5-OCTEN-4-ONE 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

2,7-DIMETHYL-5-OCTEN-4-ONE 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, 2,7-DIMETHYL-5-OCTEN-4-ONE carries the following function designation(s):

PERFUMING

CAS 68419-46-5 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 2,7-DIMETHYL-5-OCTEN-4-ONE

This page reproduces the CosIng inventory entry for 2,7-DIMETHYL-5-OCTEN-4-ONE 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 2,7-DIMETHYL-5-OCTEN-4-ONE 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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