InChI=1S/C22H22O12/c1-31-19-11(26)6-10(25)13-15(28)21(18(33-20(13)19)8-2-4-9(24)5-3-8)34-22-17(30)16(29)14(27)12(7-23)32-22/h2-6,12,14,16-17,22-27,29-30H,7H2,1H3