2-Naphthalenesulfonic acid, 6-amino-5-((4-amino-2-sulfophenyl)azo)-4-hydroxy-, disodium salt 6360-04-9 Acid Red 34 Amacid Fast Red BBL C.I. 17030 C.I. Acid Red 34 Disodium 6-amino-5-((4-amino-2-sulphonatophenyl)azo)-4-hydroxynaphthalene-2-sulphonate EINECS 228-821-1 Fast Wool Red BL Light Fast Rubine BL Metamine Fast Light Red 4BL NSC 401610 Pontacyl Light Red 4BL