InChI=1S/C27H30O16/c28-8-16-18(31)19(32)22(35)26(42-16)40-11-5-12(29)17-13(30)7-14(41-15(17)6-11)9-1-3-10(4-2-9)39-27-23(36)20(33)21(34)24(43-27)25(37)38/h1-6,14,16,18-24,26-29,31-36H,7-8H2,(H,37,38)