N-甲-N’-苯脲

4-methyl-1,2,4-oxadiazolidine-3,5-dione

N-methyl-N-nitronitramide

(3-formamidophenyl) N-methylcarbamate

N-甲基氨基甲酸 5-(二甲基氨基)邻甲苯基酯