InChI=1S/C31H30O16/c1-43-17-6-10(2-4-14(17)33)26-13(9-32)19-12(3-5-15(34)28(19)46-26)27-23(38)21(36)20-16(35)7-11(8-18(20)45-27)44-31-25(40)22(37)24(39)29(47-31)30(41)42/h2-8,13,22-27,29,31-35,37-40H,9H2,1H3,(H,41,42)