InChI=1S/C26H30O13/c27-10-19-20(32)21(33)22(39-25-23(34)26(35,11-28)12-36-25)24(38-19)37-15-5-1-13(2-6-15)3-8-17(30)16-7-4-14(29)9-18(16)31/h1-9,19-25,27-29,31-35H,10-12H2/b8-3+