英文名称
4-[[1,3-Dioxo-1-[(2-oxo-1,3-dihydrobenzimidazol-5-yl)amino]butan-2-yl]diazenyl]-5-methyl-7-(trioxidanylsulfanyl)naphthalene-2-sulfonic acid;6-[[1,3-dioxo-1-[(2-oxo-1,3-dihydrobenzimidazol-5-yl)amino]butan-2-yl]diazenyl]naphthalene-2-sulfonic acid