osu-6162 osu-6162 osu-6162 (pnu-96391) is a compound which acts as a partial agonist at both dopamine d2 receptors and 5-ht2a receptors. it acts as a dopamine stabilizer in a similar manner to the closely related drug pridopidine, and has antipsychotic, anti-addictive and anti-parkinsonian effects in animal studies. both enantiomers show similar activity but with different ratios of effects, with the (s) enantiomer (–)-osu-6162 that is more commonly used in research, having higher binding affinity to d2 but is a weaker partial agonist at 5-ht2a, while the (r) enantiomer (+)-osu-6162 has higher efficacy at 5-ht2a but lower d2 affinity. osu-6162clinical dataatc codenoneidentifiers iupac name (3s)-3--1-propylpiperidine cas number156907-84-5pubchem cid9795741chemspider7971507uniiv5sbjbujw6chemblchembl311730comptox dashboard (epa)dtxsid40431531 echa infocard100.216.320 chemical and physical dataformulac15h23no2smolar mass281.41 g·mol−13d model (jsmol)interactive image smiles cccn1ccc(c1)c2=cc(=cc=c2)s(=o)(=o)c inchi inchi=1s/c15h23no2s/c1-3-9-16-10-5-7-14(12-16)13-6-4-8-15(11-13)19(2,17)18/h4,6,8,11,14h,3,5,7,9-10,12h2,1-2h3/t14-/m1/s1key:gzvbvbmmnfixge-cqszacivsa-n