The molecule is an extended flavonoid that is flavonol with additional hydroxy groups at position 5 and 3', a 2,2-dimethyldihydropyrano ring fused to ring A across positions 7 and 8, a prenyl group at position 6 and a (2S)-2-hydroxy-3-methylbut-3-en-1-yl group at position 4'. Isolated from the roots of Dorstenia psilurus, it exhibits alpha-glucosidase inhibitory activity. It has a role as a metabolite and an EC 3.2.1.20 (alpha-glucosidase) inhibitor. It is a member of flavonols, an extended flavonoid, a trihydroxyflavone and a pyranochromane.
3,5-dihydroxy-2-[3-hydroxy-4-[(2S)-2-hydroxy-3-methylbut-3-enyl]phenyl]-8,8-dimethyl-6-(3-methylbut-2-enyl)-9,10-dihydropyrano[2,3-h]chromen-4-one