乙基2-[(4-硝基苯基)氨基]乙酸酯

[ethoxycarbonylmethyl-(4-nitrophenyl)amino]acetic acid ethyl ester

diethyl fumarate

1-(2,4,6-三氯苯基)-3-(硝基苯胺)-2-吡唑啉-5-酮

methyl 3-(4-nitroanilino)-3-oxopropanoate