5-meo-nbpbrt 5-meo-nbpbrt 5-meo-nbpbrt (5-methoxy-n-(4-bromobenzyl)tryptamine) is a n-substituted member of the methoxytryptamine family of compounds. like other such compounds it acts as an antagonist for the 5-ht2a receptor, with a claimed 100x selectivity over the closely related 5-ht2c receptor. while n-benzyl substitution of psychedelic phenethylamines often results in potent 5-ht2a agonists, it had been thought that n-benzyl tryptamines show much lower efficacy and are either very weak partial agonists or antagonists at 5-ht2a, though more recent research has shown stronger agonist activity for 3-substituted benzyl derivatives. extending the benzyl group to a substituted phenethyl can also recover agonist activity in certain cases. 5-meo-nbpbrtidentifiers iupac name n-(4-bromobenzyl)-2-(5-methoxy-1h-indol-3-yl)ethanamine cas number155639-13-7 npubchem cid5124753chemspider4299315 yuniiug43ren7brchemblchembl57427 ychemical and physical dataformulac18h19brn2omolar mass359.267 g·mol−13d model (jsmol)interactive image smiles brc1=cc=c(cnccc2=cnc3=cc=c(oc)c=c23)c=c1 inchi inchi=1s/c18h19brn2o/c1-22-16-6-7-18-17(10-16)14(12-21-18)8-9-20-11-13-2-4-15(19)5-3-13/h2-7,10,12,20-21h,8-9,11h2,1h3 ykey:xhloufpzluulgi-uhfffaoysa-n y ny (what is this?) (verify)