InChI=1S/C20H17NO10/c1-6-5-9(22)21-12-10(6)14(24)11-7(13(12)23)3-2-4-8(11)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)