2-(pyridin-2-ylmethylidene)propanedinitrile

(5Z)-3,4-dimethyl-5-(pyridin-2-ylmethylidene)pyrrol-2-one

(2Z)-2-hydroxy-1-pyridin-2-yl-2-(1H-pyridin-2-ylidene)ethanone

6-pyridin-2-yl-6,12-dihydrobenzimidazolo[1,2-c]quinazoline

1-methylpyridin-1-ium-2-carbaldehyde,iodide