N-[4-(4-acetamido-3-hydroxyphenyl)-2-hydroxyphenyl]acetamide

5-氨基-4-甲氧基-2-(4-氨基-5-甲氧基-2-磺基苯基)苯磺酸

N,N'-(3,3'-二甲氧基[1,1'-联苯]-4,4'-二基)二[3-氧代丁酰胺]