InChI=1S/C20H17NO10/c1-6-4-10(22)21-12-11(6)13(23)9-5-7(2-3-8(9)14(12)24)30-20-17(27)15(25)16(26)18(31-20)19(28)29/h2-5,15-18,20,25-27H,1H3,(H,21,22)(H,28,29)