InChI=1S/C21H24O13/c22-8(4-10-11(24)5-9(23)6-12(10)25)1-7-2-13(26)15(27)14(3-7)33-21-18(30)16(28)17(29)19(34-21)20(31)32/h2-3,5-6,8,16-19,21-30H,1,4H2,(H,31,32)