Official EU label nameGlossary entry 8308

DELTA-DECALACTONE

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

0 markets with evidence

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Markets with evidence

Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:705-86-2

EC:211-889-1

Ingredient index records:

DELTA-DECALACTONE

Cosmetic functions: FRAGRANCE, PERFUMING

Decan-5-olide

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1 matched or reported name

DELTA-DECALACTONE

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name DELTA-DECALACTONE.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 705-86-2

CAS 705-86-2PubChem CID 12810

delta-Decalactone

6-pentyloxan-2-one is a delta-lactone that is 5-valerolactone substituted by a pentyl group at position 6. It has a role as a metabolite. It is functionally related to a 5-valerolactone. — ChEBI

IUPAC name: 6-pentyloxan-2-one

Molecular formula: C10H18O2
Molecular weight: 170.25 g/mol
Exact mass: 170.130679813 Da
XLogP3: 2.5
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-Pentyltetrahydro-2H-pyran-2-one5-Decanolidedelta-Decanolactone2H-Pyran-2-one, tetrahydro-6-pentyl-5-DecalactoneDecan-5-olidedelta-Decalactone (natural)FEMA No. 2361

16 more reported names

Tetrahydro-6-pentyl-2H-pyran-2-onedelta-Pentyl-delta-valerolactone.delta.-Decalactone5-Amyl-5-hydroxypentanoic acid lactone.DELTA.-LACTONE-EINECS 211-889-1UNII-CNA0S5T234.delta.-Decanolide6-pentylvalerolactoneBRN 0117520CNA0S5T234Tetrahydro-6-pentylpyran-2-one.delta.-Decanolactone(RS)-.DELTA.-DECALACTONE.DELTA.-DECALACTONE [MI]DECALACTONE DELTA

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External database identifiers

ChEBI:CHEBI:87327
ChEMBL:CHEMBL3182189
EPA DTXSID:DTXSID0044496
PubMed:21535590
PubMed:20827703
PubMed:20415420
PubMed:19630425
PubMed:18598047
PubMed:18576988
PubMed:18495140
PubMed:18473468
PubMed:18393434
PubMed:17935296
PubMed:17846564
PubMed:17705437

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Additional authoritative substance research

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

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 US EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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