InChI=1S/C31H36O19/c32-9-16-19(35)20(36)23(39)29(47-16)50-28-18-14(7-8-31(18,44)11-46-17(34)6-3-12-1-4-13(33)5-2-12)15(10-45-28)27(43)49-30-24(40)21(37)22(38)25(48-30)26(41)42/h1-8,10,14,16,18-25,28-30,32-33,35-40,44H,9,11H2,(H,41,42)/b6-3+