InChI=1S/C25H24O12/c1-32-15-5-10(6-16(33-2)19(15)28)23-24(37-25-22(31)21(30)20(29)17(9-26)36-25)12-3-4-34-13-7-11(27)8-14(35-23)18(12)13/h3-8,17,20-22,25-26,29-31H,9H2,1-2H3,(H-,27,28)/p+1