InChI=1S/C21H30O10/c1-8-11(22)4-3-10-5-12-13(18(26)21(8,10)2)9(6-29-12)7-30-20-16(25)14(23)15(24)17(31-20)19(27)28/h6,8,10-11,14-18,20,22-26H,3-5,7H2,1-2H3,(H,27,28)