InventoryRef 3966512/07/2019

ALPHA-ISOMETHYL IONONE

3-Methyl-4-(2,6,6-trimethyl-2-cyclohexenyl)-3-buten-2-one; Methyl-gamma-ionone; gamma-Methylionone

ALPHA-ISOMETHYL IONONE is linked to 1 EU annex record on this page. Inventory note: III/90.

Inventory details for ALPHA-ISOMETHYL IONONE

INCI name

ALPHA-ISOMETHYL IONONE

Description

3-Methyl-4-(2,6,6-trimethyl-2-cyclohexenyl)-3-buten-2-one; Methyl-gamma-ionone; gamma-Methylionone

Key data

Restriction
III/90

How ALPHA-ISOMETHYL IONONE appears in the CosIng inventory

The CosIng inventory lists ALPHA-ISOMETHYL IONONE 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-ISOMETHYL IONONE 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-ISOMETHYL IONONE 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-ISOMETHYL IONONE reads: "III/90". 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-ISOMETHYL IONONE carries the following function designation(s):

CAS 127-51-5 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 tool to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

Source note for ALPHA-ISOMETHYL IONONE

This page combines the CosIng inventory entry for ALPHA-ISOMETHYL IONONE 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-ISOMETHYL IONONE 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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