ly-293284 ly-293284 ly-293284 is a research chemical developed by the pharmaceutical company eli lilly and used for scientific studies. it acts as a potent and selective 5-ht1a receptor full agonist. it was derived through structural simplification of the ergoline based psychedelic lsd, but is far more selective for 5-ht1a with over 1000x selectivity over other serotonin receptor subtypes and other targets. it has anxiogenic effects in animal studies. ly-293284identifiers iupac name (4r)-6-acetyl-4-(di-n-propylamino)-1,3,4,5-tetrahydrobenzindole cas number141318-62-9 ypubchem cid132345iuphar/bps19chemspider116875unii92mme29xhmcomptox dashboard (epa)dtxsid70161692 chemical and physical dataformulac19h26n2omolar mass298.430 g·mol−13d model (jsmol)interactive image smiles cccn(ccc)1cc2=cnc3=c2c(=c(c=c3)c(=o)c)c1 inchi inchi=1s/c19h26n2o/c1-4-8-21(9-5-2)15-10-14-12-20-18-7-6-16(13(3)22)17(11-15)19(14)18/h6-7,12,15,20h,4-5,8-11h2,1-3h3/t15-/m0/s1key:ckyzlyqsdnlgpt-hnnxbmfysa-n (verify)