1-Naphthalenesulfonic acid, 3,3'-((1,1'-biphenyl)-4,4'-diylbis(azo))bis(4-amino-, disodium salt 1-Naphthalenesulfonic acid, 3,3'-(4,4'-biphenylenebis(azo))bis(4-amino-, disodium salt 550-08-3 573-58-0 70248-72-5 87440-95-7 AI3-63036 Atlantic Congo Red Atul Congo Red Azocard Red Congo Benzo Congo Red Brasilamina congo 4B C.I. 22120 C.I. Direct Red 28 C.I. Direct Red 28, disodium salt C.I. Direct Red 28, disodium salt (8CI) CCRIS 2277 Cerven kongo [Czech] Cerven prima 28 [Czech] Congazone sodium Congo Red 4B Congo Red 4BX Congo Red CR Congo Red H Congo Red ICI Congo Red L Congo Red M Congo Red N Congo Red R Congo Red W Congo Red WS Congo red Cotton Red 4BC Cotton