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Chemical structures of THC, JWH-018, and common synthetic cannabinoids. AM-2201 is an analog of JWH-018 that appeared in the recreational drug marketplace after emergency scheduling legislation was enacted in 2011 to ban JWH-018. UR-144, XLR-11, ABPINACA and AB-FUBINICA represent subsequent generations of replacement cannabinoid drugs that have appeared in the recreational drug marketplace over the past few years.
Source: Michael Baumann
