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