Description
An analytical reference standard that is structurally similar to known opioids; a presumptive metabolite of ortho-methylfentanyl, ortho-methyl furanyl fentanyl, ortho-methyl cyclopropyl fentanyl, ortho-methyl acetyl fentanyl, ortho-methyl phenyl fentanyl, ortho-methyl acrylfentanyl, and ortho-methyl methoxyacetyl fentanyl; intended for research and forensic applications