Cyclopentyl-Fentanyl
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2 sources
Also known as cp-f, cpf
An analogue of fentanyl that is unknown in literature, seems to be less potent than its former being Acetyl-Fentanyl. Yet reports have yet to surface. Be careful.
Source: TripSit — Cyclopentyl-Fentanyl ↗
Fact-sheets from PsychonautWiki. Harm-reduction reference only — not medical advice.