1-(4-Chlorophenyl)-4-(3-chloropropyl)piperazine is an intermediate in the synthesis of 2-?[3-?[4-?(4-?Chlorophenyl)?-?1-?piperazinyl]?propyl]?-1,?2,?4-triazolo[4,?3-?a]?pyridin-?3(2H)?-?one Hydrochloride (C433100), which is a related compound of Trazodone (T718500), which is an antidepressant.