Is E128 vegan? Sources and aliases

Vegan

E128 is classified as vegan by the local ingredient taxonomy.

Names you may see on a label

Vermelho 2GE128 Vermelho 2GRød 2GRed 2GCzerwień 2GRouge 2GCI Food Red 10AzogéranineCI No. 18050CAS 3734-67-6C.I. 18050AzophloxineAzofloxinAmidonaphthol red GAcid Red 1CI Acid Red 1D&C Red 11Azo Geranine 2GPunainen 2GAtsogeraniiniE 128Dinatrium 5-asetamido-4-okso-3-(fenyylihydratsinyylideeni)naftaleeni-2‚7-disulfonaattiCI 18050E128 food additiveRojo 2GRood 2GRöd 2GRot 2GRoth 2GRosso 2G

How to verify it

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