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