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InventoryRef 4056815/10/2010

PENTADECALACTONE

Pentadecan-15-olide; angelica lactone; hexaltolide; thibetolide; omega-Pentadecalactone

PENTADECALACTONE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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.

Chemical identity and properties

PubChem 2D chemical structure for CAS 106-02-5
CAS 106-02-5PubChem CID 235414

Pentadecalactone

Cyclopentadecanolide is a macrolide. ChEBI

IUPAC name
oxacyclohexadecan-2-one
Molecular formula
C15H28O2
Molecular weight
240.38 g/mol
Exact mass
240.208930132 Da
XLogP3
5.8
Topological polar surface area
26.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

CyclopentadecanolideExaltolidePentalidePentadecan-15-olideMuskolactoneThibetolideomega-PentadecalactoneFEMA No. 2840
16 more reported names
OK17S3S98KNSC-36763EXALTEXPentadecanoic acid, 15-hydroxy-, xi-lactoneCPE-21515-Hydroxypentadecanoic acid-epsilon-lactoneRefChem:857011203-354-6PentadecanolideMuskalactone15-Pentadecanolide15-Pentadecanolactone1,15-Pentadecanolide2-Pentadecalone1-oxacyclohexadecan-2-onePentadecanolactone
External database identifiers

Evidence from additional scientific databases

EMBL-EBI ChEBI
Exact identifier matchCHEBI:177420

Cyclopentadecanolide

Formula
C15H28O2
Average mass
240.387 g/mol
Monoisotopic mass
240.20893 Da
Formal charge
0
  • macrolide — is a (CHEBI:25106)
  • macrolide — is a (CHEBI:25106)
Additional curated names
oxacyclohexadecan-2-one
Cross-references from this source

Mapped by: Exact CAS cross-reference in the ChEBI compound record. Retrieved: 2026-08-31. Open source record

NIH PubChem PUG-View
Exact identifier match235414

Attributed physical-property, hazard, environmental and use annotations.

  • Note: This chemical does not meet GHS hazard criteria for 14.8% (270 of 1826) of reports. Source: European Chemicals Agency (ECHA)
  • Signal: Warning Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H317 (13.5%): May cause an allergic skin reaction [Warning Sensitization, Skin]; H411 (82.8%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] Source: European Chemicals Agency (ECHA)
  • Precautionary Statement Codes: P261, P272, P273, P280, P302+P352, P321, P333+P317, P362+P364, P391, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
  • ECHA C&L Notifications Summary: Aggregated GHS information provided per 1826 reports by companies from 12 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Reported as not meeting GHS hazard criteria per 270 of 1826 reports by companies.; There are 11 notifications provided by 1556 of 1826 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
  • GHS Hazard Statements: H413: May cause long lasting harmful effects to aquatic life [Hazardous to the aquatic environment, long-term hazard] Source: NITE-CMC
  • Precautionary Statement Codes: P273, and P501 (click each P-code to see the statement) Source: NITE-CMC
  • GHS Hazard Statements: Not Classified Source: NITE-CMC

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status
SourceResultChecked
EMBL-EBI ChEBIExact match2026-08-31
NIH PubChem PUG-ViewExact match2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

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 PENTADECALACTONE

INCI name

PENTADECALACTONE

Description

Pentadecan-15-olide; angelica lactone; hexaltolide; thibetolide; omega-Pentadecalactone

Record provenance

Inventory reference
40568
Imported identity
PENTADECALACTONE
Source update
15/10/2010
European Commission CosIng source notes

Key data

Restriction
Function
FRAGRANCE
Imparting an odour or taste. Creating a perceivable pleasant smell and/or masking a bad smell.
PERFUMING
Used for perfume and aromatic raw materials.

Official EU ingredient-name evidence

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

Ingredients with overlapping formulation functions

Additional official and scientific sources

11 external databases to check this identity in

How PENTADECALACTONE appears in the CosIng inventory

The CosIng inventory lists PENTADECALACTONE 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.

PENTADECALACTONE is also tagged with 2 cosmetic functions 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

PENTADECALACTONE 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, PENTADECALACTONE carries the following function designation(s):

CAS 106-02-5 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.

Use the INCI Checker to screen a full ingredient list across selected markets, or compare this substance across all supported market datasets.

Source note for PENTADECALACTONE

This page reproduces the CosIng inventory entry for PENTADECALACTONE 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 PENTADECALACTONE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

Tools & next steps

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