4-(4-Chlorophenyl)-1-(4-(4-fluorophenyl)-4-oxobutyl)-4-piperidinyl 2-hydroxypropanoate 75478-79-4 Haloperidol lactate Haloperidol lactate salt Propanoic acid, 2-hydroxy-, 4-(4-chlorophenyl)-1-(4-(4-fluorophenyl)-4-oxobutyl)-4-piperidinyl ester