InChI=1S/C31H38O20/c1-31(45)16(33)7-11-12(26(41)42)8-47-28(18(11)31)51-30-23(39)20(36)19(35)15(49-30)9-46-17(34)5-3-10-2-4-14(13(32)6-10)48-29-24(40)21(37)22(38)25(50-29)27(43)44/h2-6,8,11,15-16,18-25,28-30,32-33,35-40,45H,7,9H2,1H3,(H,41,42)(H,43,44)/b5-3+