2-Naphthalenecarboxamide,3-hydroxy-4-[(2-methoxy-5-nitrophenyl)azo]-N-(3-nitrophenyl)- (9CI);2-Naphthanilide, 3-hydroxy-4-[(2-methoxy-5-nitrophenyl)azo]-3'-nitro-(6CI,7CI); C.I. Pigment Red 23 (8CI); 1523 Naphthol Red; 3040 Red; AlkaliResistant Red Dark; C.I. 12355; C.I. Pigment Red 157; Calcotone Red 3B; CarnationRed Toner B; Congo Red R 138; Fenalac Red FKB Extra; Irgafin Dark Red T;Irgalite Red RBS; Malta Red X 2284; Naphthol Red B; Naphthol Red B 20-7575;Naphthol Red D Toner 35-6001; Naphthol Red Deep 10459; Pigment Red 157; PigmentRed 23; Pigment Red BH; Rubescence Red MT 21; Sanyo Fast Red 10B; Sapona RedLake RL 6280; Segnale Light Rubine RG; Symuler Fast Red 4015; Textile Red WD263; Unisperse Red RBS-PI