InChI=1S/C31H32O18/c32-15-5-1-13(9-17(15)34)4-8-22(38)49-31(30(44)45)11-18(35)26(19(36)12-31)47-21(37)7-3-14-2-6-16(33)20(10-14)46-29-25(41)23(39)24(40)27(48-29)28(42)43/h1-10,18-19,23-27,29,32-36,39-41H,11-12H2,(H,42,43)(H,44,45)/b7-3+,8-4+/t18?,19?,23?,24?,25?,26?,27?,29?,31-