InChI=1S/C28H28O12/c29-12-22-23(33)24(34)25(35)28(40-22)39-20-10-15(30)9-19-16(20)11-21(38-27(36)13-4-2-1-3-5-13)26(37-19)14-6-7-17(31)18(32)8-14/h1-10,21-26,28-35H,11-12H2/t21-,22-,23-,24+,25-,26-,28-/m1/s1