InChI=1S/C40H44O13/c1-48-32-15-22(5-7-30(32)43)36(45)28(17-41)26-11-20(13-34(50-3)37(26)46)9-24-19-52-40(47)25(24)10-21-12-27-29(18-42)38(53-39(27)35(14-21)51-4)23-6-8-31(44)33(16-23)49-2/h5-8,11-16,24-25,28-29,36,38,41-46H,9-10,17-19H2,1-4H3