drupanol drupanol drupanol is a naturally occurring phenol that has been isolated from the seeds of psoralea drupaceae. although drupanol is sometimes said to be the same compound as bakuchiol, the two compounds are in fact distinct; they have the same molecular formula and weight but different chemical structures and hence are structural isomers. bakuchiol has been found to possess antiandrogenic activity in vitro. drupanolidentifiers iupac name 4-(3-ethenyl-3,6-dimethyl-1-methylene-5-heptenyl)phenol cas number42041-17-8 y ((+)-isomer)uniiu4ju7qtn2qchemical and physical dataformulac18h24omolar mass256.389 g·mol−13d model (jsmol)interactive image smiles cc(c)=ccc(c)(cc(=c)c1=cc=c(o)c=c1)c=c inchi inchi=1/c18h24o/c1-6-18(5,12-11-14(2)3)13-15(4)16-7-9-17(19)10-8-16/h6-11,19h,1,4,12-13h2,2-3,5h3key:crwulajeywvgoc-uhfffaoyna-n