Vegan

E172i is classified as vegan by the local ingredient taxonomy.

Names you may see on a label

Ossido di ferro neroEisenoxidschwarzSchwarzes EisenoxidÓxido de hierro negroZwart ijzeroxideSvart järnoxidMusta rautaoksidimarsmustaMustaa rautaoksidiamarsmustaaOxyde de fer noirČerný oxid železaCzarny tlenek żelazaSort jernoxidBlack iron oxideÓxido de ferro preto

How to verify it

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