InChI=1S/C28H26O12/c1-13(29)36-10-28(32)11-37-27(25(28)30)40-24-16-8-20(34-3)19(33-2)7-15(16)22(23-17(24)9-35-26(23)31)14-4-5-18-21(6-14)39-12-38-18/h4-8,25,27,30,32H,9-12H2,1-3H3/t25-,27-,28+/m0/s1