72854-11-6 3-[[2-Methyl-4-[[4-[2-[4-[[3-methyl-4-[(5,8-disulfo-2-naphthalenyl)azo]phenyl]azo]-2-sulfophenyl]ethenyl]-3-sulfophenyl]-ONN-azoxy]phenyl]azo]-1,5-naphthalenedisulfonic acid hexasodium salt
72854-09-2 5-[[4-[(4-Sulfophenyl)-ONN-azoxy]phenyl]azo]-2-[2-[2-sulfo-4-[[4-[(4-sulfophenyl)-ONN-azoxy]phenyl]-ONN-azoxy]phenyl]ethenyl]benzenesulfonic acid tetrasodium salt