Fragrance allergens / 6-Methyl Coumarin

6-Methyl Coumarin

6-Methyl Coumarin must be declared in the EU and Northern Ireland, but it is NOT on the Great Britain list: GB retains the older, shorter list and has not adopted Reg (EU) 2023/1545.

Identity

Name in the ingredient list	6-Methyl Coumarin
CAS / EC number	92-48-8 / EC 202-158-8
EU Annex III entry	46

It predates the 2023 expansion; Reg (EU) 2023/1545 amended its entry (typically regrouping the covered isomer forms).

When it must appear on the label

6-Methyl Coumarin may be present as a constituent of essential oils or fragrance compounds. It must be named individually in the ingredient list when its total concentration in the finished product exceeds 0.001% in leave-on products (lotions, balms) or 0.01% in rinse-off products (soap, shower gel), summed across every fragrance source in the recipe. Below the threshold it stays within the collective term "Parfum".

United States: no individual fragrance-allergen labelling is in force yet (MoCRA rulemaking pending); fragrance is declared collectively as "Fragrance".

Common questions

Do I have to list 6-Methyl Coumarin on my label?

6-Methyl Coumarin must be declared in the EU and Northern Ireland, but it is NOT on the Great Britain list: GB retains the older, shorter list and has not adopted Reg (EU) 2023/1545. It must be named individually once it exceeds 0.001% of a leave-on product or 0.01% of a rinse-off product, summed across every fragrance source in the recipe. Below that it stays inside the collective term "Parfum".

What is the CAS number for 6-Methyl Coumarin?

6-Methyl Coumarin is listed under CAS 92-48-8 (EC 202-158-8), Annex III entry 46.

Sources

Commission Regulation (EU) 2023/1545 (OJ L 188, 27.7.2023), as corrected by the corrigendum of 11.11.2025, Annex (EUR-Lex)

Transcribed from the official texts linked above and source-audited against them; a labelling reference, not safety advice. You remain responsible for your product's compliance.

Rule tables last checked 21 August 2026.