(3-hydroxy-1-methyl-but-2ξ-enylidene)-malononitrile

2-amino-4,6-dimethylbenzene-1,3-dicarbonitrile

1-(3,5-dimethylpyrazol-1-yl)ethanone

1,3,5-三甲基吡唑

2,4-二甲基恶唑