2-甲酰基-5-硝基-苯甲酸

6-(dimethylamino)-3H-2-benzofuran-1-one

[1-(benzenesulfonyl)indol-2-yl]-[2-(hydroxymethyl)-5-nitrophenyl]methanone

2-formyl-5-iodobenzoic acid

5-bromo-2-formylbenzoic acid