InChI=1S/C26H28O9/c1-12(2)5-6-17-18-8-15(29)9-20(31)21(18)23(32)22-19(17)11-26(34,10-16(30)7-13(3)27)25(24(22)33)35-14(4)28/h5,7-9,25,29-32,34H,6,10-11H2,1-4H3/t25-,26+/m1/s1