Keywords: 4-phenyl-1-(4-phenylbutyl) piperidine.svg Skeletal formula of 4-phenyl-1- 4-phenylbutyl piperidine 4-PPBP Created using http //www acdlabs com/download/chemsk html ACD/ChemSketch 10 0 and Inkscape Own 2007-06-17 Fvasconcellos 13 25 17 June 2007 UTC Piperidines |