InChI=1S/C38H52O21/c1-50-20-7-14(3-5-18(20)41)33-16-11-53-34(17(16)12-52-33)15-4-6-19(21(8-15)51-2)55-38-35(59-37-32(49)29(46)26(43)23(10-40)57-37)30(47)27(44)24(58-38)13-54-36-31(48)28(45)25(42)22(9-39)56-36/h3-8,16-17,22-49H,9-13H2,1-2H3