InChI=1S/C21H22O14/c1-5(6-2-8(23)9(24)3-7(6)22)13(26)12-10(25)4-11(14(27)15(12)28)34-21-18(31)16(29)17(30)19(35-21)20(32)33/h2-5,16-19,21-25,27-31H,1H3,(H,32,33)