disodium (2E)-3-oxo-2-(3-oxo-5-sulfonato-1H-indol-2-ylidene)-1H-indole-5-sulfonate disodium (2E)-3-oxo-2-(3-oxo-5-sulfonato-indolin-2-ylidene)indoline-5-sulfonate disodium (2E)-3-oxo-2-(3-oxo-5-sulfonato-2-indolinylidene)-5-indolinesulfonate disodium (2E)-3-keto-2-(3-keto-5-sulfonato-indolin-2-ylidene)indoline-5-sulfonate 860-22-0 LS-1857 D01563 Indigo carmine (TN) Indigocarmine Indigocarmine (JP15) Indigotindisulfonate sodium (USP) Indigo carmine disodium (2E)-3,3'-dioxo-1,1',3,3'-tetrahydro-2,2'-biindole-5,5'-disulfonate 57000_FLUKA Acid Blue 74 131164_SIAL Indigo-5,5′-disulfonic acid disodium salt