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| Clinical data | |
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| Routes of administration | Oral, intransal, vaporized | 
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| PubChem CID | |
| Chemical and physical data | |
| Formula | C21H26N4O3 | 
| Molar mass | 382.464 g·mol−1 | 
| 3D model (JSmol) | |
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N-Desethylprotonitazene is a benzimidazole opioid with potent analgesic effects which has been sold as a designer drug. It was first identified in 2024 as an active metabolite of the closely related compound protonitazene, [1] [2] and was found to have less potency than it while still being more potent than fentanyl. [3] [4]
It was discovered in a drug sample from Chicago in June 2025. [3]
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