Benzo[a]phenazinium,5-[(2,4-disulfophenyl)amino]-7-phenylsulfo-, inner salt, sodium salt (1:2)

hydrogen 5-[(2,4-disulphonatophenyl)amino]-7-phenylsulphonatobenzo[a]phenazinium, disodium salt

5-[[2-(Sodiooxysulfonyl)-4-sulfonatophenyl]amino]-7-[(sodiooxysulfonyl)phenyl]benzo[a]phenazinium

Benzo(.alpha.)phenazinium,5-[(2,4-disulfophenyl)amino]-7-phenylsulfo-,hydroxide,innersalt,disodiumsalt