InChI=1S/C33H38O21/c1-8-19(38)21(40)26(45)32(49-8)53-15-6-12(37)17-11(36)5-13(50-28(17)18(15)29-24(43)22(41)20(39)16(7-34)51-29)9-2-3-10(35)14(4-9)52-33-27(46)23(42)25(44)30(54-33)31(47)48/h2-6,8,16,19-27,29-30,32-35,37-46H,7H2,1H3,(H,47,48)