InChI=1S/C31H32O18/c32-15-5-1-13(9-17(15)34)3-7-21(38)46-26-19(36)11-31(12-20(26)37,49-22(39)8-4-14-2-6-16(33)18(35)10-14)30(45)48-29-25(42)23(40)24(41)27(47-29)28(43)44/h1-10,19-20,23-27,29,32-37,40-42H,11-12H2,(H,43,44)/b7-3+,8-4+/t19?,20?,23?,24?,25?,26?,27?,29?,31-