英文名称:2-Naphthalenesulfonicacid,6-amino-3-[2-[4-[2-[4-[bis(2-hydroxyethyl)amino]phenyl]diazenyl]-2-butoxyphenyl]diazenyl]-4-hydroxy-,sodium salt (1:1); 2-Naphthalenesulfonicacid,6-amino-3-[[4-[[4-[bis(2-hydroxyethyl)amino]phenyl]azo]-2-butoxyphenyl]azo]-4-hydroxy-,monosodium salt (9CI)