Get Fu-F or Furanyl-fentanyl Online At Everest Chemicals USA
Fu-F (Furanyl-fentanyl) is an opioid analgesic that is an analog of fentanyl and has been sold as a designer drug. It has an ED50 value of 0.02 mg/kg in mice. This makes it approximately one fifth as potent as fentanyl.
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