3,5-Bis(2-pyridylamino)-1,2,4-thiadiazole

(9ci)-n-丙基-n-2-吡啶硫脲

1-pyridin-2-yltetrazol-5-amine

N-pyridin-2-ylmorpholine-4-carbothioamide

3,4-tetramethylenepyrido[1,2-a]pyrimidine-2-thione