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