2,2'-Dihydroxy-3,3'-dioxo-[2,2'-biindoline]-5,5'-disulfonic Acid

786615-03-0

Indigotindisulfonate Disodium Injection EP Impurity FP-B (As per EP Monograph 37.2); (2Ξ,2′Ξ)-2,2′-dihydroxy-3,3′-dioxo-2,2′,3,3′-tetrahydro-1H,1′H-[2,2′-biindole]-5,5′-disulfonic Acid; [2,2′-Bi-1H-indole]-5,5′-disulfonic acid, 2,2′,3,3′-tetrahydro-2,2′-dihydroxy-3,3′-dioxo-; 2,2′,3,3′-Tetrahydro-2,2′-dihydroxy-3,3′-dioxo[2,2′-bi-1H-indole]-5,5′-disulfonic Acid;