1-Naphthalenesulfonicacid, 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[4-amino-, disodium salt(9CI);C.I. Direct Red 28, disodium salt (8CI);Atlantic Congo Red;Atul CongoRed;Azocard Red Congo;Benzo Congo Red;Brasilamina Congo 4B;C.I. 22120;C.I.Direct Red 28;Congo Red 4B;Congo Red 4BX;Congo Red CR;Congo Red H;CongoRed K;Congo Red L;Congo Red M;Congo Red N;Congo Red R;Congo Red RS;CongoRed TS;Congo Red W;Congo Red WS;Congo Red sodium salt;
