disodium 4,4'-[1,3-phenylenebis[azo(4,6-diamino-3,1-phenylene)azo]]bis(benzenesulphonate) disodium 4-[2,4-bis(azanyl)-5-[3-[2,4-bis(azanyl)-5-(4-sulfonatophenyl)diazenyl-phenyl]diazenylphenyl]diazenyl-phenyl]diazenylbenzenesulfonate Benzenesulfonic acid, 4,4'-[1,3-phenylenebis [azo(4,6-diamino-3,1-phenylene)azo]]bis-, disodium salt 4,4'-[1,3-Phenylenebis[azo(4,6-diamino-3,1-phenylene)azo]]bisbenzenesulfonic acid, disodium salt Direct brown 44 (C.I. 35005) C.I.DirectBrown44 DirectBrown3G disodium 4-[2,4-diamino-5-[3-[2,4-diamino-5-(4-sulfonatophenyl)azo-phenyl]azophenyl]azo-phenyl]azobenzenesulfonate