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Furanylfentanyl is a powerful synthetic opioid that is structurally similar to fentanyl. It was first reported in 2016 and has since gained popularity as a recreational drug. Furanylfentanyl is highly potent and has been associated with numerous overdose deaths.

Chemical Properties

Furanylfentanyl is a derivative of fentanyl, with a furanyl group added to the structure. Its chemical formula is C24H26N2O2, and its molecular weight is 374.48 g/mol. It has a melting point of 87-88°C and a boiling point of 502.2°C at 760 mmHg.


Like other opioids, furanylfentanyl acts on the body’s mu-opioid receptors, producing powerful pain relief and a sense of euphoria. It has a high affinity for these receptors, making it much more potent than many other opioids. This high potency also makes it much more dangerous, as even small doses can result in overdose.

Mechanism of Action

Furanylfentanyl is a full agonist of the mu-opioid receptor, meaning that it activates the receptor to its full potential. It also has some affinity for the delta and kappa opioid receptors, but its activity at these receptors is much weaker. The high potency of furanylfentanyl is due to its ability to cross the blood-brain barrier quickly and efficiently, leading to rapid onset of effects.


The effects of furanylfentanyl are similar to those of other opioids, including pain relief, sedation, and a sense of euphoria. However, the potency of furanylfentanyl means that these effects can be much stronger than with other opioids. Users may also experience respiratory depression, nausea, and confusion. Overdose can lead to coma, respiratory arrest, and death.

Legal Status

Furanylfentanyl is classified as a controlled substance in many countries, including the United States, Canada, and the United Kingdom. In some cases, it is specifically listed as a controlled substance, while in others it is covered by broader legislation that includes all fentanyl derivatives.


Furanylfentanyl is a highly potent opioid that has gained popularity as a recreational drug. However, its high potency makes it much more dangerous than other opioids, and it has been associated with numerous overdose deaths. As a controlled substance, it is illegal to buy, sell, or possess without a prescription.


100g, 200g, 300g, 500g


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