1-(2,4-Dimethoxyphenyl)piperazine16015-75-131 % similar Vortioxetine hydrobromide960203-27-430 % similar 1-(4-Fluorophenyl)piperazine2252-63-330 % similar 1-(p-Tolyl)piperazine39593-08-330 % similar p-(1-Piperazinyl)phenol56621-48-830 % similar 1-(4-Bromophenyl)piperazine66698-28-030 % similar 1-(2-Chloro-4-nitrophenyl)piperazine114878-60-330 % similar