InChI=1S/C21H22O13/c1-6(15(27)14-11(25)2-7(22)3-12(14)26)8-4-9(23)10(24)5-13(8)33-21-18(30)16(28)17(29)19(34-21)20(31)32/h2-6,16-19,21-26,28-30H,1H3,(H,31,32)