The molecule is an extended flavonoid that is 7-hydroxyflavonol with an additional hydroxy group at position 3', a 2,2-dimethyldihydropyrano ring fused to ring A across positions 5 and 6, a prenyl group at position 8 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 7-hydroxyflavonol, an extended flavonoid, a trihydroxyflavone and a pyranochromane.
5,9-dihydroxy-8-[3-hydroxy-4-[(2S)-2-hydroxy-3-methylbut-3-enyl]phenyl]-2,2-dimethyl-6-(3-methylbut-2-enyl)-3,4-dihydropyrano[2,3-f]chromen-10-one