Is 4-(4-Methoxyphenyl)-3-butene-2-one (Anisylidene acetone), when used as a fragrance ingredient restricted under the ASEAN Cosmetic Directive?

4-(4-Methoxyphenyl)-3-butene-2-one (Anisylidene acetone), when used as a fragrance ingredient is prohibited under the ASEAN Cosmetic Directive Annex II.

Regulatory data is for reference only. Always verify with the official regulator before making formulation decisions. Last refreshed: 8/29/2026.

Ingredients/4-(4-Methoxyphenyl)-3-butene-2-one (Anisylidene acetone), when used as a fragrance ingredient

4-(4-Methoxyphenyl)-3-butene-2-one (Anisylidene acetone), when used as a fragrance ingredientCAS 943-88-4

EU CosIng II — prohibitedASEAN II — prohibited

Regulatory status

Source	Status	Annex / Details	Limit / Conditions	Last updated
EU CosIng	prohibited	Annex II		—
ASEAN	prohibited	Annex II	—	—

What this means

4-(4-Methoxyphenyl)-3-butene-2-one (Anisylidene acetone), when used as a fragrance ingredient has regulatory signals in EU CosIng, ASEAN. Review the source links above for the official conditions and latest updates.

Common questions

Is 4-(4-Methoxyphenyl)-3-butene-2-one (Anisylidene acetone), when used as a fragrance ingredient restricted in EU cosmetics?: 4-(4-Methoxyphenyl)-3-butene-2-one (Anisylidene acetone), when used as a fragrance ingredient is prohibited in EU cosmetics according to EU CosIng Annex II.
Is 4-(4-Methoxyphenyl)-3-butene-2-one (Anisylidene acetone), when used as a fragrance ingredient restricted under the ASEAN Cosmetic Directive?: 4-(4-Methoxyphenyl)-3-butene-2-one (Anisylidene acetone), when used as a fragrance ingredient is prohibited under the ASEAN Cosmetic Directive Annex II.
What is the CAS number for 4-(4-Methoxyphenyl)-3-butene-2-one (Anisylidene acetone), when used as a fragrance ingredient?: The CAS number for 4-(4-Methoxyphenyl)-3-butene-2-one (Anisylidene acetone), when used as a fragrance ingredient is 943-88-4.

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