Indigotine (E132)

Synonyms: 2-(1,3-Dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-1H-Indole-5-sulfonic Acid, C.I. Acid Blue 74 (6CI), [Δ2,2'-Biindoline]-5,5'-disulfonic Acid, 3,3'-dioxo-, disodium Salt (8CI), 12070 Blue, 1311 Blue, 5,5'-Indigodisulfonic Acid Disodium Salt, A.F. Blue No. 2, Acid Blue 74, Acid Blue W, Acid Leather Blue IC, Airedale Blue IN, Amacid Brilliant Blue, Aniline Carmine Powder, Ariavit Indigo Carmine, Atul Indigo Carmine, Basovit Blue 665E, Blue 2, Bucacid Indigotine B, C.I. 73015, C.I. 75781, C.I. Food Blue 1, C.I. Natural Blue 2, Canacert Indigo Carmine, Carmine Blue, Carmine indigo, Cilefa Blue R, Cogilor Blue 511.11, Disodium 5,5'-Indigodisulfonate, Disodium 5,5'-Indigotin Disulfonate, Dolkwal Indigo Carmine, E 132, Edicol Supra Blue X, Eurocert Indigo Carmine 311811, FD & C