The chemical structure of the substance is advanced, and acetyl fentanyl and fentanyl are in the phenylpiperidine class of artificial opioids. It may be used in its place or different to heroin. Acetyl fentanyl, a fentanyl analogue emerging onto the leisure drug scene, has triggered quite a few latest fatal overdoses in the United States, Europe, and Russia. Studies of acetyl fentanyl use are