InChI=1S/C33H40O21/c34-7-15-19(39)23(43)26(46)31(50-15)48-9-17-21(41)25(45)30(54-32-27(47)24(44)20(40)16(8-35)51-32)33(52-17)53-29-22(42)18-13(38)5-12(37)6-14(18)49-28(29)10-1-3-11(36)4-2-10/h1-6,15-17,19-21,23-27,30-41,43-47H,7-9H2