Desmethoxyyangonin (Standard) is one of the six major kavalactones found in the Piper methysticum (kava) plant. Desmethoxyyangonin (Standard) is a selective inhibitor of monoamine oxidase-B (MAO-B) (IC50: 0.123 µM). Desmethoxyyangonin (Standard) exerts anti-inflammatory effects by inhibiting Jak2/STAT3 and IKK signaling pathways. Desmethoxyyangonin (Standard) induces CYP3A23 expression and leads to skeletal muscle relaxation[1][2][3][4].