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The chemical structures of AB‐FUBINACA derivatives, metabolite‐2 and hydroxyl metabolite‐1. (A) The major metabolite (metabolite‐2) is shown. It is resulted from hydroxylation and N‐dealkylation of AB‐FUBINACA in the rat. The ion exchange of the chemical structure is shown. (B) The second abundant of metabolite (Hydroxy metabolite‐1) is shown. The metabolite contains hydroxyl group on the propyl moiety.
