InChI=1S/C21H22O13/c22-8-4-12(26)15(13(27)5-8)9(23)2-1-7-3-10(24)11(25)6-14(7)33-21-18(30)16(28)17(29)19(34-21)20(31)32/h3-6,16-19,21-22,24-30H,1-2H2,(H,31,32)