phenyl N-(4-nitrophenyl)carbamate

1,3-二乙基-1,3-二(4-硝基苯基)脲

4-nitro-2-(4-nitrophenyl)isoindole-1,3-dione

2,2,2-trifluoroethyl N-(4-nitrophenyl)carbamate

1-(4-methoxyphenyl)-3-(4-nitrophenyl)urea