InChI=1S/C28H30O13/c1-28(2)19(41-28)9-15-16(36-3)10-18-14(23(15)37-4)8-13(26(35)38-18)12-6-5-11(29)7-17(12)39-27-22(32)20(30)21(31)24(40-27)25(33)34/h5-8,10,19-22,24,27,29-32H,9H2,1-4H3,(H,33,34)