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