Metabolite Detection is important to document drug usage in medical and forensic settings, and section I metabolites of isotonitazene and metonitazene are already identified in genuine cases of intake (Krotulski et al. 2020, 2021). Having said that, the focus was on reporting isotonitazene and metonitazene concentrations, and phase II metabolites https://chemicalglobe.com/product-tag/protonitazene-for-sale-near-me/