InChI=1S/C30H26O11/c31-14-4-1-12(2-5-14)28-22(38)10-16-18(34)11-21(37)25(30(16)41-28)26-24-20(36)8-15(32)9-23(24)40-29(27(26)39)13-3-6-17(33)19(35)7-13/h1-9,11,22,26-29,31-39H,10H2