The molecule is a biaryl that is 2,2',3,3'-tetrahydro-4H,4'H-9,9'-bibenzo[g]chromene-4,4'-dione substituted by hydroxy groups at positions 5, 5', 6, 6', 8 and 8' and methyl groups at positions 2, 2' and 3 (the 2R,3R stereoisomer). It has been isolated from Chaetomium gracile. It has a role as a Chaetomium metabolite. It is a benzochromenone, a biaryl and a member of phenols.
(2R,3R)-5,6,8-trihydroxy-2,3-dimethyl-9-(5,6,8-trihydroxy-2-methyl-4-oxo-2,3-dihydrobenzo[g]chromen-9-yl)-2,3-dihydrobenzo[g]chromen-4-one