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Fragrance allergens / Citrus Aurantium Flower Oil

Citrus Aurantium Flower Oil

Citrus Aurantium Flower Oil 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 listCitrus Aurantium Flower Oil
CAS / EC numbers72968-50-4 / EC 277-143-28028-48-6 / EC 232-433-88016-38-4
EU Annex III entry350
Group entrySeveral substance forms are declared under this single name.

It was ADDED to the EU list by Reg (EU) 2023/1545, so products made for the older 26-entry list may need relabelling.

When it must appear on the label

Citrus Aurantium Flower Oil 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 Citrus Aurantium Flower Oil on my label?

Citrus Aurantium Flower Oil 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 Citrus Aurantium Flower Oil?

Citrus Aurantium Flower Oil is listed under CAS 72968-50-4, 8028-48-6, 8016-38-4 (EC 277-143-2, 232-433-8), Annex III entry 350.

Sources

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.