FU-F

FU-F (Furanylfentanyl) is a synthetic opioid analgesic formally derived from the condensation of N-phenyl-1-(2-phenylethyl)piperidin-4-amine with furan-2-carboxylic acid. With a molecular formula of C24H26N2O2 and mass of 374.48 g/mol, this fentanyl analog functions as a mu-opioid receptor agonist with approximately one-fifth the potency of fentanyl. Researchers who purchase FU-F for analytical studies will find it produces similar breathing effects to fentanyl while showing lesser impact on blood oxygen saturation. FU-F is available as a certified reference material for forensic and analytical applications.