Vegan

E381 is classified as vegan by the local ingredient taxonomy.

Names you may see on a label

cytrynian amonu i żelaza-IIIferric ammonium citrateammonium ferric citratecitrato férrico de amóniocitrato ferrico di ammonioAmmoniumeisen-III-citratAmmoniumeisenzitratAmmoniumeisencitratFerriammoniumcitratEisenammoniumcitratferriammoniumcitratcitrato férrico de amonioijzer-III-ammoniumcitraatcitrát železito-amonnýAmmoniumrautasitraattiAmmoniumrautasitraattiacitrate ferrique d'ammoniumCitrate d'ammonium ferrique vertCitrate d'ammonium ferrique

How to verify it

Check that the name refers to this exact ingredient and not a similar additive with a different source.