What does the restriction note for ALPHA-DAMASCONE mean?

The restriction field for ALPHA-DAMASCONE reads: III/157. This is the restriction note from the CosIng inventory. For authoritative conditions and limits, always refer to the linked annex entries.

How do I check if my formula contains ALPHA-DAMASCONE?

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

InventoryRef 5436015/10/2010

ALPHA-DAMASCONE

(Z)-1-(2,6,6-trimethyl-2-cyclohexen-1-yl)-2-buten-1-one

ALPHA-DAMASCONE is linked to 1 EU annex record on this page. Inventory note: III/157.

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Regulatory evidence by market

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Market	Evidence status	Records	Source language
European Union	Evidence linked Restricted entry found Open this evidence	1	English and EU languages
Great Britain	Evidence linked Restricted Open this evidence	1	English
Canada	Source mapped Official source mapped; ingredient rule not imported	0	English and French
New Zealand	Evidence linked Restricted Open this evidence	2	English
ASEAN	Source mapped Official source mapped; ingredient rule not imported	0	English and national languages
China	Source mapped Official source mapped; ingredient rule not imported	0	Chinese with selected English material
Japan	Source mapped Official source mapped; ingredient rule not imported	0	Japanese; official English translation available
South Korea	Evidence linked Restricted Open this evidence	1	Korean with some English names
United States	Source mapped Official source mapped; ingredient rule not imported	0	English
Australia	Source mapped Official source mapped; ingredient rule not imported	0	English
Brazil	Source mapped Official source mapped; ingredient rule not imported	0	Portuguese with INCI crosswalks
India	Evidence linked Restricted Open this evidence	1	English and Hindi
Saudi Arabia	Source mapped Official source mapped; ingredient rule not imported	0	Arabic and English

Chemical identity and properties

PubChem 2D chemical structure for CAS 43052-87-5

CAS 43052-87-5PubChem CID 520506

alpha-Damascone

IUPAC name: 1-(2,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-1-one

Molecular formula: C13H20O
Molecular weight: 192.30 g/mol
Exact mass: 192.151415257 Da
XLogP3: 3.2
Topological polar surface area: 17.1 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 1
Covalent units: 1
Defined stereocentres: 0

Also known as

RefChem:555689620-558-42-Buten-1-one, 1-(2,6,6-trimethyl-2-cyclohexen-1-yl)-FEMA No. 3659UP5JTZ982I.alpha.-Damascone1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-buten-1-oneGCGZDUFEEQNVPR-UHFFFAOYSA-N

1 more reported name

1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-buten-1-one #

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID90880772
PubMed:27965148
PubMed:22023385

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for ALPHA-DAMASCONE

INCI name

ALPHA-DAMASCONE

Description

(Z)-1-(2,6,6-trimethyl-2-cyclohexen-1-yl)-2-buten-1-one

Record provenance

Inventory reference: 54360
Imported identity: ALPHA-DAMASCONE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for ALPHA-DAMASCONE

Annex III Restriction reference

Entry 157

Alpha-Damascone/cis-Rose ketone 1/trans-Rose ketone 1; Rose ketone 4 (Damascone); Rose ketone 3 (de…

CAS: 43052-87-5/ 23726-94-5/24720-09-0; 23696-85-7; 57378-68-4/ 71048-82-3; 23726-92-3; 23726-91-2

EC: -/ 245-845-8/ 246-430-4; 245-833-2; 260-709-8/ 275-156-8; 245-843-7; 245-842-1

Key data

CAS

23726-94-5 / 43052-87-5

245-845-8

Restriction

III/157

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.

#1468 · ALPHA-DAMASCONE

Ingredients with overlapping formulation functions

ALLIUM SATIVUM BULB OILFRAGRANCE, SKIN CONDITIONING

ALLYL CAPROATEASTRINGENT, FRAGRANCE, PERFUMING, SKIN CONDITIONING - EMOLLIENT

ALOE BARBADENSIS LEAFFRAGRANCE

ALOE BARBADENSIS LEAF WATERFRAGRANCE

ALPINIA GALANGA RHIZOME OILFRAGRANCE; PERFUMING; SKIN CONDITIONING - MISCELLANEOUS

ALPINIA URAIENSIS LEAF OILFLAVOURING, FRAGRANCE, PERFUMING

ALPINIA URAIENSIS LEAF WATERFRAGRANCE, HUMECTANT

ALPINIA ZERUMBET LEAF OILFRAGRANCE

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 ALPHA-DAMASCONE appears in the CosIng inventory

The CosIng inventory lists ALPHA-DAMASCONE as a cosmetic ingredient and this page links it to 1 annex record. The inventory entry captures names and identifiers, while the annex record shows where the substance is prohibited, restricted or positively listed in EU cosmetics law.

ALPHA-DAMASCONE 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

ALPHA-DAMASCONE appears in the EU CosIng inventory and has linked annex records. Check the annex records above for applicable restrictions, concentration limits and conditions of use. Annex II listing means prohibited; Annex III means restricted; Annexes IV, V and VI mean permitted under specified conditions.

The restriction field for ALPHA-DAMASCONE reads: "III/157". This is the restriction note recorded in the CosIng inventory for this ingredient. For authoritative conditions and limits, always refer to the linked annex entries above.

According to the EU CosIng inventory, ALPHA-DAMASCONE carries the following function designation(s):

CAS 23726-94-5 / 43052-87-5 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.

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Source note for ALPHA-DAMASCONE

This page combines the CosIng inventory entry for ALPHA-DAMASCONE with 1 linked Annex II–VI record from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research ALPHA-DAMASCONE 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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