93857-65-9 Disodium 3,3'-(1,3,8,10-tetrahydro-1,3,8,10-tetraoxoanthra(2,1,9-def:6,5,10-d'e'f')diisoquinoline-2,9-diyl)bis(6-aminobenzenesulphonate) EINECS 299-201-6