1,2,4-Triazolo[4,3-a]pyridin-3(2H)-one was used to prepare a congener of Trazadone which was found to be a potent and selective inhibitor of synaptosomal uptake of 5-hydroxytryptamine.Form:Beige SolidMelting Point:232-235°CSolubility:Chloroform (Sparingly), DMSO