英文名称
2,4-diamino-5-[[4-[(4-methylphenyl)diazenyl]-6-(trihydroxy-λ4-sulfanyl)naphthalen-1-yl]diazenyl]benzenesulfonic acid;4-[[4-[(4-methylphenyl)diazenyl]-6-(trihydroxy-λ4-sulfanyl)naphthalen-1-yl]hydrazinylidene]-5-oxo-1-(4-sulfophenyl)pyrazole-3-carboxylic acid