InChI=1S/C28H28O13/c1-28(2)16(41-28)8-12-13(35-3)9-15-18(22(12)36-4)23-17(26(34)39-15)11-6-5-10(7-14(11)38-23)37-27-21(31)19(29)20(30)24(40-27)25(32)33/h5-7,9,16,19-21,24,27,29-31H,8H2,1-4H3,(H,32,33)