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