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