Is 4-tert-Butylbenzoic acid restricted in EU cosmetics?

4-tert-Butylbenzoic acid is prohibited in EU cosmetics according to EU CosIng Annex II.

Is 4-tert-Butylbenzoic acid restricted under the ASEAN Cosmetic Directive?

4-tert-Butylbenzoic acid is prohibited under the ASEAN Cosmetic Directive Annex II.

The CAS number for 4-tert-Butylbenzoic acid is 98-73-7.

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

Ingredients/4-tert-Butylbenzoic acid

EU CosIng II — prohibitedASEAN II — prohibited

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

4-tert-Butylbenzoic acid has regulatory signals in EU CosIng, ASEAN. Review the source links above for the official conditions and latest updates.

Is 4-tert-Butylbenzoic acid restricted in EU cosmetics?: 4-tert-Butylbenzoic acid is prohibited in EU cosmetics according to EU CosIng Annex II.
Is 4-tert-Butylbenzoic acid restricted under the ASEAN Cosmetic Directive?: 4-tert-Butylbenzoic acid is prohibited under the ASEAN Cosmetic Directive Annex II.
What is the CAS number for 4-tert-Butylbenzoic acid?: The CAS number for 4-tert-Butylbenzoic acid is 98-73-7.