2-Benzimidazolinone, 1-[1-[3-(p-fluorobenzoyl)propyl]-4-piperidyl]-, hydrochloride 2H-Benzimidazol-2-one, 1-[1-[4-(4-fluorophenyl)-4-oxobutyl]-4-piperidinyl]-1,3-dihydro-, monohydrochloride 983-42-6 Anquil hydrochloride Benperidol hydrochloride Benzperidol hydrochloride Frenactyl Frenactyl hydrochloride NSC169873