InChI=1S/C27H26O19/c28-7-3-1-6(2-4-7)20-15(33)12(30)10-8(42-20)5-9(43-26-18(36)13(31)16(34)22(45-26)24(38)39)11(29)21(10)44-27-19(37)14(32)17(35)23(46-27)25(40)41/h1-5,13-14,16-19,22-23,26-29,31-37H,(H,38,39)(H,40,41)