indigo carmine;
[D2,2'-Biindoline]-5,5'-disulfonicacid,3,3'-dioxo-(7CI,8CI);
Indigodisulfonic acid;
1H-Indole-5-sulfonicacid,2-(1,3-dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo;
3,3'-dioxo-1,3,1',3'-tetrahydro-[2,2']biindolylidene-5,5'-disulfonic acid;
tetrapotassium 5,5',7,7'-indigotetrasulfonate;
3,3'-dioxo-1,3,1',3'-tetrahydro-[2,2']biindolylidene-5,7,5',7'-tetrasulfonic acid,tetrapotassium salt;
2-(1,3-dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-3-oxoindoline-5-sulfonic acid;
(E)-3,3'-dioxo-1,3,1',3'-tetrahydro-[2,2']biindolylidene-5,5'-disulfonic acid;
MFCD00059886;
3,3'-Dioxo-1,3,1',3'-tetrahydro-[2,2']biindolyliden-5,7,5',7'-tetrasulfonsaeure,Tetrakaliumsalz;
Saxon blue;
(E)-3,3'-Dioxo-1,3,1',3'-tetrahydro-[2,2']biindolyliden-5,5'-disulfonsaeure;
5,5'-Indigotindisulfonic acid;
Blue X;