3H-1,2,4-Triazol-3-one, 2-[3-[4-(3-chlorophenyl)- 1-piperazinyl]propyl]-4,5-diethyl-2,4-dihydro-, monohydrochloride 57775-22-1 Etoperidone hydrochloride NSC304398 ST 1191 HCl