C.I. 14710; C.I. Acid Red 4; C.I. Acid Red 4, monosodium salt; C.I. Acid Red 4, monosodium salt (8CI); Acid Red 4 (C.I.); sodium 4-hydroxy-3-(2-methoxyphenylazo)naphthalenesulphonate; Acid Red 4; (3E)-3-[(2-methoxyphenyl)hydrazono]-4-oxo-3,4-dihydronaphthalene-1-sulfonic acid; Acid Red 4