cpd-1 cpd-1 cpd-1 (ls-193743) is a drug with a benzofuranyl piperazine structure, which acts as a potent and selective agonist for the 5-ht2 receptor family, with highest affinity and full agonist efficacy at the 5-ht2c subtype, and lower affinity and partial agonist action at the 5-ht2a and 5-ht2b subtypes. cpd-1legal statuslegal status in general: uncontrolled identifiers iupac name (3s)-3-methyl-1-piperazine cas number325145-37-7 ypubchem cid9925822chemspider8101457uniizz7jb9qbu3chemblchembl2260570chemical and physical dataformulac14h15f3n2omolar mass284.282 g·mol−13d model (jsmol)interactive image smiles c1cn(ccn1)c2=c3c(=c(c=c2)c(f)(f)f)c=co3 inchi inchi=1s/c14h15f3n2o/c1-9-8-19(6-5-18-9)12-3-2-11(14(15,16)17)10-4-7-20-13(10)12/h2-4,7,9,18h,5-6,8h2,1h3/t9-/m0/s1key:rzsibgyucgydkg-vifpvbqesa-n