alentemol alentemol alentemol (inn) (developmental code name u-66444b), or alentamol, is a selective dopamine autoreceptor agonist described as an antipsychotic, which was never marketed. alentemol names iupac name 2-(dipropylamino)-2,3-dihydro-1h-phenalen-5-ol identifiers cas number 112891-97-1 y 3d model (jsmol) interactive image chembl chembl2104081 chemspider 54603 pubchem cid 60574 unii f6s91mhl3e y inchi inchi=1s/c19h25no/c1-3-8-20(9-4-2)17-10-14-6-5-7-15-12-18(21)13-16(11-17)19(14)15/h5-7,12-13,17,21h,3-4,8-11h2,1-2h3key: twujbhbryytedl-uhfffaoysa-ninchi=1/c19h25no/c1-3-8-20(9-4-2)17-10-14-6-5-7-15-12-18(21)13-16(11-17)19(14)15/h5-7,12-13,17,21h,3-4,8-11h2,1-2h3key: twujbhbryytedl-uhfffaoyac smiles cccn(ccc)c1cc2=cc=cc3=cc(=cc(=c23)c1)o properties chemical formula c19h25no molar mass 283.415 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references