sb-215505 sb-215505 sb-215505 is a drug which acts as a potent and selective antagonist at the serotonin 5-ht2b receptor, with good selectivity over the related 5-ht2a and 5-ht2c receptors. it is used in scientific research into the function of the 5-ht2 family of receptors, especially to study the role of 5-ht2b receptors in the heart, and to distinguish 5-ht2b-mediated responses from those produced by 5-ht2a or 5-ht2c. sb-215505identifiers iupac name 6-chloro-5-methyl-n-quinolin-4-yl-2,3-dihydroindole-1-carboxamide cas number162100-15-4 ypubchem cid6603999chemspider5036305chemblchembl525998 ncomptox dashboard (epa)dtxsid70424971 chemical and physical dataformulac19h16cln3omolar mass337.81 g·mol−13d model (jsmol)interactive image smiles cc1=c(c=c2c(=c1)ccn2c(=o)nc3=cc=nc4=cc=cc=c43)cl inchi inchi=1s/c19h16cln3o/c1-12-10-13-7-9-23(18(13)11-15(12)20)19(24)22-17-6-8-21-16-5-3-2-4-14(16)17/h2-6,8,10-11h,7,9h2,1h3,(h,21,22,24)key:bpvgswdwiriume-uhfffaoysa-n ny (what is this?) (verify)