[9,9'-Bi-4H-naphtho[2,3-b]pyran]-4,4'-dione,2,2',3,3'-tetrahydro-5,5',6,6',8,8'-hexahydroxy-2,2',3,3'-tetramethyl-,(2R,2'R,3R,3'R,9S)-;5,6,8-trihydroxy-2,3-dimethyl-9-(5,6,8-trihydroxy-2,3-dimethyl-4-oxo-2,3-dihydrobenzo[g]chromen-9-yl)-2,3-dihydrobenzo[g]chromen-4-one;CHAETOCHROMIN A;Bis(naphthodihydropyran-4-one);Chaetochromin;Chaetochromin B