InChI=1S/C21H22O12/c1-7(13(25)10-3-2-8(22)6-12(10)24)9-4-5-11(23)14(26)18(9)32-21-17(29)15(27)16(28)19(33-21)20(30)31/h2-7,15-17,19,21-24,26-29H,1H3,(H,30,31)