InChI=1S/C29H23NO19/c31-4-8(33)18(37)20(39)9-2-5-12(28(46)48-9)14(22(41)24(43)17(5)36)15-16-13(21(40)25(44)23(15)42)11-6(27(45)30-3-10(34)35)1-7(32)19(38)26(11)49-29(16)47/h1-2,8,18,20,31-33,36-44H,3-4H2,(H,30,45)(H,34,35)