InChI=1S/C21H28O10/c1-7-4-5-9-11(7)16-12(8(2)19(27)30-16)10(6-21(9,3)28)29-20-15(24)13(22)14(23)17(31-20)18(25)26/h4,9-17,20,22-24,28H,2,5-6H2,1,3H3,(H,25,26)