2-phenyl-2-piperazin-1-ylacetonitrile

5-(2-呋喃基)-5-甲基咪唑烷-2,4-二酮

二十烷腈

4,5-dichloro-3,6-dihydroxybenzene-1,2-dicarbonitrile

4,5-二苯基-噁唑