5-methyl-6-phenylpyrazine-2,3-dicarbonitrile

5,6-bis(4-methylphenyl)pyrazine-2,3-dicarbonitrile

5,6,7,8-tetrahydroquinoxaline-2,3-dicarbonitrile

2,3-二氰基-5,6-二苯基吡嗪

5,6-bis(furan-2-yl)pyrazine-2,3-dicarbonitrile