InChI=1S/C28H34O12/c1-28(2,35)8-7-14-18(39-27-25(34)24(33)23(32)20(11-29)40-27)10-16(30)21-22(31)15(12-38-26(14)21)13-5-6-17(36-3)19(9-13)37-4/h5-6,9-10,12,20,23-25,27,29-30,32-35H,7-8,11H2,1-4H3/t20-,23-,24+,25-,27-/m1/s1