| 英文同义词: | 2-(1,3-Dihydro-3-oxo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-1H-indole-5-sulfonic acid;3,3'-Dioxo[Δ2,2'-biindoline]-5-sulfonic acid;5-Indigosulfonic acid;Indigo sulfonic acid;1H-Indole-5-sulfonic acid, 2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo- |