(1)Benzopyrano(5,4,3-cde)(1,3)dioxolo(4,5-h)(1)benzopyran-5,11-dione, 1,2,3,6-tetramethoxy- 120139-69-7 3,4,5,5'-O-Tetramethyl-3',4'-O,O-methylidenecoruleoellagic acid d 3,4,5-Tmmce