fub-pb-22 fub-pb-22 fub-pb-22 (qufubic) is an indole-based synthetic cannabinoid that is a potent agonist of the cb1 receptor and has been sold online as a designer drug. fub-pb-22legal statuslegal status ca: schedule ii de: anlage ii (authorized trade only, not prescriptible) uk: class b identifiers iupac name quinolin-8-yl 1--1h-indole-3-carboxylate cas number1800098-36-5pubchem cid91936864chemspider29763736uniids46154n3fchemical and physical dataformulac25h17fn2o2molar mass396.421 g·mol−13d model (jsmol)interactive image smiles fc1ccc(cc1)cn1cc(c2c1cccc2)c(=o)oc1cccc2c1nccc2 inchi inchi=1s/c25h17fn2o2/c26-19-12-10-17(11-13-19)15-28-16-21(20-7-1-2-8-22(20)28)25(29)30-23-9-3-5-18-6-4-14-27-24(18)23/h1-14,16h,15h2key:rohvurvxaomrjy-uhfffaoysa-n pharmacology fub-pb-22 acts as a full agonist with a binding affinity of 0.386nm at cb1 and 0.478nm at cb2 cannabinoid receptors. legal status fub-pb-22 is an anlage ii controlled substance in germany. it was scheduled in japan in july 2014. as of october 2015 fub-pb-22 is a controlled substance in china. it is also banned in sweden.