InChI=1S/C33H36O19/c1-9-20(38)23(41)29(51-32-25(43)21(39)19(37)10(2)48-32)28(47-9)18-14(36)8-16-17(13(35)7-15(49-16)11-3-5-12(34)6-4-11)27(18)50-33-26(44)22(40)24(42)30(52-33)31(45)46/h3-10,19,21-26,28-30,32-34,36-37,39-44H,1-2H3,(H,45,46)