diethyl 1,2,4-triazine-5,6-dicarboxylate

N-乙基-2,4,6-三硝基苯胺

ethyl N-[3-(ethoxycarbonylamino)-4-methylphenyl]carbamate

carbamic acid, (3-amino-4-methyphenyl)-, ethyl ester

ethyl N-(4-bromophenyl)carbamate