IUPAC:(2S,3S,11'S,13'S)-2',3,4,9-tetrahydroxy-7-methoxy-6'-methyl-5,8-dihydro-3H-5',12',15'-trioxaspiro[naphtho[2,3-b]furan-2,14'-tetracyclo[8.5.0.0^{3,8}.0^{11,13}]pentadecane]-1'(10'),2',6',8'-tetraene-4',5,8-trione
IUPAC:(2S,3S,11'S,13'S)-2',3,4,9-tetrahydroxy-7-methoxy-6'-methyl-5,8-dihydro-3H-5',12',15'-trioxaspiro[naphtho[2,3-b]furan-2,14'-tetracyclo[8.5.0.0^{3,8}.0^{11,13}]pentadecane]-1'(10'),2',6',8'-tetraene-4',5,8-trione