ly-266,097 ly-266,097 ly-266,097 is a research ligand which acts as a potent and selective antagonist for the 5-ht2b receptor, with more than 100x selectivity over the related 5-ht2a and 5-ht2c receptor subtypes. it has been used to study the role of the 5-ht2b receptor in modulating dopamine release in the brain, as well as its involvement in other processes such as allodynia. ly-266,097legal statuslegal status in general: uncontrolled identifiers iupac name 1--6-methyl-2,3,4,9-tetrahydro-1h-pyridoindole cas number208591-60-0 ypubchem cid9953185chemspider8128795unii2z9tc7ymy4chemblchembl95121chemical and physical dataformulac21h23cln2o2molar mass370.88 g·mol−13d model (jsmol)interactive image smiles cc1=cc2=c(c=c1)nc3=c2ccnc3cc4=c(c(=c(c=c4)oc)oc)cl inchi inchi=1s/c21h23cln2o2/c1-12-4-6-16-15(10-12)14-8-9-23-17(20(14)24-16)11-13-5-7-18(25-2)21(26-3)19(13)22/h4-7,10,17,23-24h,8-9,11h2,1-3h3key:njlhhcitdfzzse-uhfffaoysa-n