Acetic AnhydridesAnhydridesSuccinic AnhydridesPhthalic AnhydridesMaleic AnhydridesAcetylationNeutral GlycosphingolipidsAcetatesCitraconic AnhydridesChemistryChemical PhenomenaLysineChromatography, Thin LayerMagnetic Resonance SpectroscopyTritiumDrug and Narcotic ControlUnited States Department of AgricultureNorth CarolinaResearch SubjectsLegislation, DrugMethyltestosteroneUnited States Department of Homeland Security