InChI=1S/C32H40O20/c33-9-17-19(36)21(38)25(42)30(50-17)47-14-4-3-12(16(8-14)49-32-27(44)23(40)24(41)28(52-32)29(45)46)2-1-11-5-13(35)7-15(6-11)48-31-26(43)22(39)20(37)18(10-34)51-31/h1-8,17-28,30-44H,9-10H2,(H,45,46)/b2-1+