丙酮肟 O-(2,4,6-三甲基苯磺酰)

甲基肼

1,3-dimethyl-1H-pyrazole-4-carbaldehyde N-formyl-N-methylhydrazone

1,3-二甲基-1H-吡唑-4-甲醛

2,5-Dimethyl-2H-1,2,3σ2-diazaphosphol