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CAS 710-04-3 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 4126102/03/2011

DELTA-UNDECALACTONE

6-Hexyltetrahydro-2H-pyran-2-one

DELTA-UNDECALACTONE 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 710-04-3

CAS 710-04-3PubChem CID 61204

delta-UNDECALACTONE

6-Hexyltetrahydro-2H-pyran-2-one is a delta-lactone. — ChEBI

IUPAC name: 6-hexyloxan-2-one

Molecular formula: C11H20O2
Molecular weight: 184.27 g/mol
Exact mass: 184.146329876 Da
XLogP3: 3.1
Topological polar surface area: 26.3 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

6-Hexyltetrahydro-2H-pyran-2-one2H-PYRAN-2-ONE, 6-HEXYLTETRAHYDRO-5-UndecanolideUndecanoic delta-lactone5-Hydroxyundecanoic acid lactoneUndecanolide-1,5delta-UndecanolactoneDelta undecalactone

16 more reported names

FEMA No. 3294delta-Hexylvalerolactone.delta.-Hexylvalerolactone.delta.-UndecalactoneAI3-36029EINECS 211-915-12H-Pyran-2-one, tetrahydro-3-hexyl-5-Hexyl-5-hydroxypentanoic acid lactoneBRN 0122724ERL32M2M38Undecanoic acid, 5-hydroxy-, delta-lactone(RS)-.DELTA.-UNDECALACTONE.delta.-Hexyl-.delta.-valerolactone5-Hydroxyundecanoic Acid delta-Lactone6-HEXYL-2H-TETRAHYDROPYRAN-2-ONE.DELTA.-UNDECANOLACTONE

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:171846
ChEMBL:CHEMBL372447
EPA DTXSID:DTXSID9047099
PubMed:22272331
PubMed:21535590
PubMed:18566579

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 DELTA-UNDECALACTONE

INCI name

DELTA-UNDECALACTONE

Description

6-Hexyltetrahydro-2H-pyran-2-one

Record provenance

Inventory reference: 41261
Imported identity: DELTA-UNDECALACTONE
Source update: 02/03/2011

European Commission CosIng source notes

Annex records for DELTA-UNDECALACTONE

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Key data

CAS

710-04-3

211-915-1

Restriction

—

Function

PERFUMING: Used for perfume and aromatic raw materials.

Ingredients with overlapping formulation functions

DELTA-DODECALACTONEPERFUMING

DELTA-HEXALACTONEPERFUMING

DELTA-NONALACTONEPERFUMING

DELTA-OCTALACTONEPERFUMING

DIACETYLPERFUMING

DIALLYL SULPHIDEPERFUMING

DIALLYLDISULPHIDEPERFUMING

DIANTHUS CARYOPHYLLUS FLOWER EXTRACTFRAGRANCE, PERFUMING, SKIN CONDITIONING

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 DELTA-UNDECALACTONE appears in the CosIng inventory

The CosIng inventory lists DELTA-UNDECALACTONE 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.

DELTA-UNDECALACTONE 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

DELTA-UNDECALACTONE 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, DELTA-UNDECALACTONE carries the following function designation(s):

PERFUMING

CAS 710-04-3 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 DELTA-UNDECALACTONE

This page reproduces the CosIng inventory entry for DELTA-UNDECALACTONE 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 DELTA-UNDECALACTONE 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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