英文名称:2-Naphthalenesulfonicacid,7-amino-4-hydroxy-3-[2-[4-[2-(2-methylphenyl)diazenyl]-6-sulfo-1-naphthalenyl]diazenyl]-,sodium salt (1:2); 2-Naphthalenesulfonicacid,7-amino-4-hydroxy-3-[[4-[(2-methylphenyl)azo]-6-sulfo-1-naphthalenyl]azo]-,disodium salt (9CI); C.I. Direct Violet 5, disodium salt (8CI); C.I. 27660; C.I. Direct Violet 5; Direct Violet 5; Direct Violet RL