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PubChem CID | |
Chemical and physical data | |
Formula | C22H25FN4O3 |
Molar mass | 412.465 g·mol−1 |
3D model (JSmol) | |
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Fluetonitazepyne (F-etonitazepyne, 2-fluoroetonitazepyne) is a benzimidazole derivative which is an opioid designer drug. It was first identified in Italy in July 2024, [1] and subsequently isolated in Finland in early 2025 from the body fluids of five people who had died from opioid overdose. [2]