InChI=1S/C26H26O12/c1-33-14-5-3-13(4-6-14)17-11-35-18-9-15(7-8-16(18)22(17)29)37-26-25(32)24(31)23(30)19(38-26)12-36-21(28)10-20(27)34-2/h3-9,11,19,23-26,30-32H,10,12H2,1-2H3