InChI=1S/C21H22O10/c22-12(10-4-2-1-3-5-10)9-13(23)11-6-7-15(14(24)8-11)30-21-18(27)16(25)17(26)19(31-21)20(28)29/h1-8,12,16-19,21-22,24-27H,9H2,(H,28,29)