生物活性: 5,7,3',4'-Tetrahydroxy-3-methoxy-8-geranylflavone is a prenylflavone with anti-proliferation effect on breast cancer cells. 5,7,3',4'-Tetrahydroxy-3-methoxy-8-geranylflavone can be isolated from an ethyl acetate-soluble extract of the barks of Broussonetia papyrifera.