106424-71-9 Benzenesulfonic acid, 3,3'-(1,2,3,8,9,10-hexahydro-1,3,8,10-tetraoxoanthra(2,1,9-def:6,5,10-d'e'f')diisoquinoline-2,9-diyl)bis(6-((4-amino-6-chloro-s-triazin-2-yl)amino)-, disodium salt