Einecs 289-050-4

tetrasodium 4,4'-bis[[2,5-dimethyl-4-[(4-sulphonatophenyl)azo]phenyl]azo]stilbene-2,2'-disulphonate

2,2'-(1,2-Ethenediyl)bis[5-[[2,5-dimethyl-4-[(4-sulfophenyl)azo]phenyl]azo]benzenesulfonic acid]tetrasodium salt