Similar names: Ponceau SX; 1-Naphthalenesulfonic acid, 3-[(2,4-dimethyl-5-sulfophenyl)azo]-4-hydroxy-, disodium salt (9CI); C.I. Food Red 1 (7CI); C.I. Food Red 1, disodium salt (8CI); Ponceau SX (6CI); 12101 Red; 1306 Red; C.I. 14700; Certicol Ponceau SXS; D and C Red No. 4; D&C Red #4; Edicol Supra Ponceau SX; FD and C Red No. 4; FD&C Red No. 4; FDC Red 4; Food Red 1; Food Red 4; Hexacol Ponceau SX; Japan Red 4; Japan Red 504; Japan Red No. 4; Japan Red No. 504; Puricolor Red FRE 1; Red 4; Red No. 1; Red No. 4; Red No. 504; Spring Red SX; Usacert Red No. 4