2-Naphthalenesulfonic acid, 7-(acetylamino)-3-[[4-(acetylamino)phenyl]azo]-4-hydroxy-, monosodium salt 6222-63-5 Atul Paper Scarlet A Azo Scarlet Y Blackley Fast Paper Scarlet N Blackley Fast Scarlet N Brilliant Crocein FL C.I. 17755 C.I. Acid Red 137 C.I. Acid Red 137, monosodium salt Calcocid Scarlet Y Croceine Scarlet CFL Croceine Scarlet FP Fenazo Red A NSC75906 Paper Red A Paper Red A Extra Paper Red APX Paper Scarlet GN Paper Scarlet MFL Paper Scarlet N Paper Scarlet SN Wool Fast Scarlet GN