磷酸脲

3,5-di(4-methoxyphenyl)-1,2,4,6-thiatriazine 1-oxide

1-甲基二氮杂萘

3-methyl-4-phenylhydrazono-5-isoxazolone

5-amino-1,3-dimethyl-1,3-diazinane-2,4,6-trione