Vegan

E538 is classified as vegan by the local ingredient taxonomy.

Names you may see on a label

Ferrocianuro di calcioCalciumferrocyanidGelbcalciumKalciumferrocyanidFerrocianuro cálcicoPrusiato de calCalciumhexacyanoferraatiiHexakyanoželeznatan vápenatýKalsiumferrosyanidiKalsiumferrosyanidiaFerrocyanure de calciumŻelazocyjanek wapniaŻółty prusydek wapnaCalcium ferrocyanideYellow prussiate of limeFerrocianeto de cálcioPrussianato amarelo de cal

How to verify it

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