Similar names: 2-Naphthalenol, 1-[(2,4-dimethylphenyl)azo]- (9CI); C.I. Solvent Orange 7 (7CI,8CI); Sudan Red (6CI); 1-[2-(2,4-Dimethylphenyl)diazenyl]-2-naphthalenol; AF Red No. 5; Brasilazina Oil Scarlet 6G; Brilliant Oil Scarlet B; C.I. 12140; Calco Oil Scarlet BL; Ceres Orange RR; Cerisol Scarlet G; Ext D and C Red No. 14; FD and C Red No. 32; Fast Oil Orange II; Fat Scarlet 2G; Grasan Orange 3R; Japan Red 5; Japan Red 505; Japan Red No.5; Lacquer Orange VR; NSC 10457; Oil Orange 2R; Oil Orange KB; Oil Orange N Extra; Oil Orange R; Oil Orange X; Oil Orange XO; Oil Red XO; Oil Scarlet; Oil Scarlet 371; Oil Scarlet 6G; Oil Scarlet BL; Oil Scarlet YS; Red 505; Red No. 5; Resin Scarlet 2R; Solvent Orange 7; Somalia Orange 2R; Somalia Orange A 2R; Sudan 2; Sudan II; Sudan Orange RPA; Sudan Orange RRA; Sudan Red II; Sudan orange