Partial positive allosteric modulator at the benzodiazepine receptor (IC50 = 1.3 μM for inhibition of flumazenil binding); natural sage flavone. Stimulates GABA-induced chloride currents in Xenopus oocytes expressing α1-, α2-, α3-, α5- or α6-β2 γ2S GABAA receptors. Brain penetrant; oral administration reduces seizures in a gerbil model of epilepsy. Also has antifungal, antiproliferative, antioxidant and antithrombotic properties. Purity 98%. MW (observed): 300.27