1-(4-(2-Hydroxyphenyl)-1-oxo-4-phenylbutyl)-4-methylpiperazine 129841-22-1 4-(2-Hydroxyphenyl)-4-phenylbutyric acid, N-methylpiperazinyl amide BRN 4204068 Piperazine, 1-(4-(2-hydroxyphenyl)-1-oxo-4-phenylbutyl)-4-methyl-