5-dbfpv 5-dbfpv 5-dbfpv (also known as 5-dihydro​benzo​furan​pyrovalerone and 3-desoxy-mdpv) is a stimulant of the cathinone class that has been sold online as a designer drug. it is an analogue of mdpv where the methylenedioxyphenyl group has been replaced by dihydrobenzofuran. 5-dbfpvlegal statuslegal status ca: schedule i de: npsg (industrial and scientific use only) uk: class b identifiers iupac name 1-(2,3-dihydrobenzofuran-5-yl)-2-(pyrrolidin-1-yl)pentan-1-one cas number2117405-32-8 yhydrochloride: 2117405-33-9 ypubchem cid129844558chemspider58858892unii260xib9aarhydrochloride: 16k4bio39o ychemical and physical dataformulac17h23no2molar mass273.376 g·mol−13d model (jsmol)interactive image smiles cccc(n1cccc1)c(c2=cc=c3occc3=c2)=o inchi inchi=1s/c17h23no2/c1-2-5-15(18-9-3-4-10-18)17(19)14-6-7-16-13(12-14)8-11-20-16/h6-7,12,15h,2-5,8-11h2,1h3key:cigwuzubqbqzao-uhfffaoysa-n legal status 5-dbfpv is illegal in sweden as of 26. january 2016.