[3-Methyl-3-(4-nitro-phenyl)-ureido]-acetic acid

N-甲基对硝基苯胺

1,3-Dimethyl-1-(4-nitro-phenyl)-urea

3-(2-Hydroxy-ethyl)-1-methyl-1-(4-nitro-phenyl)-urea

3-Butyl-1-methyl-1-(4-nitro-phenyl)-urea