C.I. Pigment Orange7, C.I. Pigment Orange 7,monosodium salt (8CI), Lutetia Red 3J, Benzenesulfonicacid,4,5-dichloro-2-[(2-hydroxy-1-naphthalenyl)azo]-,monosodium salt (9CI), Benzenesulfonic acid,4,5-dichloro-2-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-,sodium salt (1:1), Pigment Orange 7, SODIUM 4,5-DICHLORO-2-[(2Z)-2-(2-OXONAPHTHALEN-1-YLIDENE)HYDRAZINYL]BENZENESULFONATE