2,2'-Dithiosalicylic acid 82%邻羟基二硫代苯甲酸2-Carboxyphenyl disulfide二硫代水杨酸Dithiosalicylic Acid二苯二硫二羧酸Bis(2-carboxyphenyl) disulfide2,2′-Dithiodibenzoic acid2,2′-二硫代二苯甲酸2,2'-disulfanediyldibenzoic acidbis[2-Carboxyphenyl] disulfide2,2'-DITHIODIBENZOIC ACIDDIPHENYL DISULFIDE-2,2'-DICARBOXYLIC ACID2,2'-二硫代水杨酸2,2'-Dithiodibenzoic acid2,2'-Dithiosalicylic acid