The rule tables are transcribed from the official texts and checked against them on every change. The tool assists you; read its notes before printing a label for sale.

Fragrance allergens / Coumarin

Coumarin

Coumarin must be declared in the EU, Northern Ireland and Great Britain once it crosses the threshold.

Identity

Name in the ingredient listCoumarin
CAS / EC number91-64-5 / EC 202-086-7
EU Annex III entry77
GB Annex III entry77

It is one of the long-standing entries, carried unchanged through the 2023 expansion.

When it must appear on the label

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 Coumarin on my label?

Coumarin must be declared in the EU, Northern Ireland and Great Britain once it crosses the threshold. 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 Coumarin?

Coumarin is listed under CAS 91-64-5 (EC 202-086-7), Annex III entry 77.

Free rule-change updates

Tell me if Coumarin changes

Coumarin is declarable in the EU, Northern Ireland and Great Britain today. Those lists diverge, and they have both moved before. If Coumarin's entry changes on either list, we update the rule tables and email you.

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Sources

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

Rule tables last checked 25 September 2026.