英文别名4-(4-chlorophenyl)sulfonylaniline; 4-[(4-Chlorophenyl)sulfonyl]benzenamine; 4-AMinophenyl 4-chlorophenyl Sulfone; p-[(p-Chlorophenyl)sulfonyl]aniline; Dapsone Impurity 5; Dapsone Impurity 2; 4-Amino-4’-chlorodiphenyl Sulfone; p-(p-Chlorophenylsulfonyl)aniline