methyl 2-[4-[2-piperidinoethoxy]benzoyl]benzoate hydrochloride PITOFENONEHYDROCHLORIDE(FORR&DONLY) 2-[4-(2-piperidinoethoxy)benzoyl]benzoic acid methyl ester hydrochloride methyl 2-[4-(2-piperidin-1-ylethoxy)benzoyl]benzoate hydrochloride methyl 2-[4-(2-piperidin-1-ylethoxy)phenyl]carbonylbenzoate hydrochloride Pitophenone hydrochloride Baralgin Ketone Hydrochloride Benzoic acid,2-[4-[2-(1-piperidinyl)ethoxy]benzoyl]-, methyl ester, hydrochloride (1:1)