InChI=1S/C27H24O11/c1-11-7-14-18(16(29)8-11)20(31)19-15(9-13(28)10-17(19)30)27(14,36)24-22(33)21(32)23(34)26(37-24)38-25(35)12-5-3-2-4-6-12/h2-10,21-24,26,28-30,32-34,36H,1H3/t21-,22-,23-,24-,26+,27+/m1/s1