5-氨基-6-氯-2,3-二氰基吡嗪

5,6-bis(diethylamino)pyrazine-2,3-dicarbonitrile

5-(tert-butylamino)-6-chloropyrazine-2,3-dicarbonitrile

5-chloro-6-(3-methylphenyl)sulfanylpyrazine-2,3-dicarbonitrile

5,6-二羟基吡嗪-2,3-二羧酸