2-Naphthalenesulfonic acid, 7-(acetylamino)-4-hydroxy-3-[[4-(phenylazo)phenyl]azo]-, monosodium salt 2-Naphthalenesulfonic acid, 7-acetamido-4-hydroxy-3-[[p-(phenylazo)phenyl]azo]-, sodium salt 5873-17-6 Benzo Fast Bordeaux 6BL C.I. 28100 NSC75908