The molecule is a member of the class of pyranoxanthones that is 2H,6H-pyrano[3,2-b]xanthen-6-one substituted by hydroxy groups at positions 5, 8 and 9, geminal methyl groups at position 2 and a prenyl group at position 12. Isolated from Garcinia lancilimba, it exhibits inhibitory effects on human cancer cell line. It has a role as a metabolite and an antineoplastic agent. It is a polyphenol and a member of pyranoxanthones.
5,8,9-trihydroxy-2,2-dimethyl-12-(3-methylbut-2-enyl)pyrano[3,2-b]xanthen-6-one