InChI=1S/C21H24O10/c1-5-21(2,3)11-8-10-12(29-19(11)27)6-9(28-4)7-13(10)30-20-16(24)14(22)15(23)17(31-20)18(25)26/h5-8,14-17,20,22-24H,1H2,2-4H3,(H,25,26)