InChI=1S/C34H36O9/c1-21(7-11-24-18-31(41-4)32(42-5)20-29(24)39-2)27-15-23(17-33(43-6)34(27)38)9-13-26(36)19-25(35)12-8-22-10-14-28(37)30(16-22)40-3/h7-18,20-21,37-38H,19H2,1-6H3/b11-7+,12-8+,13-9+/t21-/m0/s1