st-1936 st-1936 st-1936 (2-methyl-5-chloro-n,n-dimethyltryptamine) is a tryptamine derivative which is used in scientific research. it acts as a selective 5-ht6 receptor agonist, with a ki of 13 nm, and much weaker action at 5-ht2b and 5-ht7 subtypes. in animal studies it has been found to increase dopamine and noradrenaline mediated signalling but decreases glutamatergic transmission, and has antidepressant effects. st-1936clinical dataatc codenoneidentifiers iupac name 2-(2-methyl-5-chloro-1h-indol-3-yl)-n,n-dimethylethanamine cas number1210-81-7 ypubchem cid9921064chemspider8096699unii4r5znv2chcchemblchembl365751chemical and physical dataformulac13h17cln2molar mass236.74 g·mol−13d model (jsmol)interactive image smiles cc1=c(ccn(c)c)c2=cc(cl)=cc=c2n1 inchi inchi=1s/c13h17cln2/c1-9-11(6-7-16(2)3)12-8-10(14)4-5-13(12)15-9/h4-5,8,15h,6-7h2,1-3h3key:ksymelkklofabl-uhfffaoysa-n