英文别名
                        6,6'-dihydroxy-3,3'-(4,4'-sulfonyl-bis-phenylazo)-di-benzoic acid;Bis-[4-(4-hydroxy-3-carboxy-phenylazo)-phenyl]-sulfon;6,6'-Dihydroxy-3,3'-(4,4'-sulfonyl-bis-phenylazo)-di-benzoesaeure;5-[[4-[4-[(3-Carboxy-4-hydroxyphenyl)diazenyl]phenyl]sulfonylphenyl]diazenyl]-2-hydroxybenzoic acid