pnu-91356a pnu-91356a pnu-91356a (u-91356) is a drug used in scientific research which acts as a potent and reasonably selective agonist of the dopamine receptor d2, with lower affinity for the related d3 and d4 subtypes and the 5-ht1a receptor. pnu-91356aclinical dataatc codenoneidentifiers iupac name (10r)-10-(propylamino)-1,3-diazatricyclododeca-4,6,8(12)-trien-2-one cas number152886-85-6 ypubchem cid132955uniik5fq4jyu8hcomptox dashboard (epa)dtxsid60934630 chemical and physical dataformulac13h17n3omolar mass231.299 g·mol−13d model (jsmol)interactive image smiles cccnc1cc2=c3c(=cc=c2)nc(=o)n3c1 inchi inchi=1s/c13h17n3o/c1-2-6-14-10-7-9-4-3-5-11-12(9)16(8-10)13(17)15-11/h3-5,10,14h,2,6-8h2,1h3,(h,15,17)/t10-/m1/s1key:xtwunlmhxddomd-snvbaglbsa-n