2-Naphthalenesulfonic acid, 5-[2-[4-(acetylamino)-2-sulfophenyl]diazenyl]-6-amino-4-hydroxy-, sodium salt (1:2); 2-Naphthalenesulfonic acid, 5-[[4-(acetylamino)-2-sulfophenyl]azo]-6-amino-4-hydroxy-, disodium salt (9CI); C.I. Acid Red 37 (7CI); C.I. Acid Red 37, disodium salt (8CI); Acetyl Fast Red B; Acetyl Fast Red B New; Acetyl Fast Red BG; Acid Brilliant Fast Red BL; Acid Fast Red B; Acid Fast Red EBL; Acid Leather Red BL; Acid Light Red 2BL; Acid Light Red G; Acid Red 37; Acid Red 3G; Acid Red BG; Acidine Fast Red B; Aizen Brilliant Acid Fast Red BLH; Albion Acid Red BG; Amacid Fast Red BL; Anthralan Red G; Azo Rubinole 3GS; Belacid Fast Red BL; C.I. 17045; C.I. Acid Red 288; Calcocid Fast Red BL; Curolite Red B; Dycosacid Red BG; Erio Fast Floxine BL; Fast Acid Red BL; Fast Light Red BA-CF; Fast Light Red GL; Fast Wool Red GL; Fenalan Red G; Kayacyl Rubinol 3GS; Kayaku Acid Fast Rubinol 3GS; Kiton Fast Red BL; Light Fast Red BL; Lissamine Fast Red B; Lissamine Fast Red BG; Lissamine Red B; Metamine Fast Light Red BL; Mitsui Acid Fast Red GL; Mitsui Acid Red GL; Naphthazine Red BLE; Naphthazine Red BLY; Nylomine Acid Red P-B; Pontacyl Light Red BLX; Ranomill Red B; Sandolan Rubinole E 3GSL; Solanol Red B; Suminol Levelling Red BL; Suminol Levelling Rubinol 3GS; Supracen Red G; Triacid Light Red BL; Unitertracid Light Red 3GE; Vondacid Light Red BL; Xylene Light Red 2GL