英文名称:Benzenesulfonic acid,5-[2-[2-methoxy-5-methyl-4-[2-(4-sulfophenyl)diazenyl]phenyl]-1-oxidodiazenyl]-2-[2-(4-nitro-2-sulfophenyl)ethenyl]-,sodium salt (1:3); Benzenesulfonicacid,5-[[2-methoxy-5-methyl-4-[(4-sulfophenyl)azo]phenyl]-NNO-azoxy]-2-[2-(4-nitro-2-sulfophenyl)ethenyl]-,trisodium salt (9CI)