InChI=1S/C25H24O14/c1-36-24(35)17(10-12-2-5-13(26)14(27)8-12)37-15-6-3-11(4-7-18(28)29)9-16(15)38-25-21(32)19(30)20(31)22(39-25)23(33)34/h2-10,19-22,25-27,30-32H,1H3,(H,28,29)(H,33,34)/b7-4+,17-10-