methyl 2-(3-chloro-4-(pyridin-2-ylamino)phenyl)propanoate

2,4-二氯硝基苯

(3-氯-4-硝基苯基)甲基丙二酸二乙酯

methyl 2-(3-chloro-4-nitrophenyl)propionate

(±)-2-(3-chloro-4-nitrophenyl)propanoic acid