lsd-pip lsd-pip lsd-pip is a compound from the ergoline family, related to lsd but with the n,n-diethyl substitution replaced by a piperidine group. it is more potent than the corresponding pyrrolidine and morpholine analogues (lpd-824 and lsm-775 respectively), but is still several times less potent than lsd as a 5-ht2a agonist. early studies suggested this compound to be inactive as a psychedelic in humans, though this does not seem to have been confirmed by any more recent work. lsd-pipidentifiers iupac name (8β)-6-methyl-8-(piperidin-1-ylcarbonyl)-9,10-didehydroergoline cas number50485-23-9 ypubchem cid308707chemspider35303396uniickn3aj58h9comptox dashboard (epa)dtxsid20308999 chemical and physical dataformulac21h25n3omolar mass335.451 g·mol−13d model (jsmol)interactive image smiles cn1c(c=c21cc3cc4c3c2ccc4)c(=o)n5ccccc5 inchi inchi=1s/c21h25n3o/c1-23-13-15(21(25)24-8-3-2-4-9-24)10-17-16-6-5-7-18-20(16)14(12-22-18)11-19(17)23/h5-7,10,12,15,19,22h,2-4,8-9,11,13h2,1h3/t15-,19-/m1/s1key:urdulhyodqaqtm-dnvcbolysa-n (verify)