InChI=1S/C21H32O9/c1-9(2)13-6-21(10(3)4-12(23)5-11(21)8-22)7-14(13)29-20-17(26)15(24)16(25)18(30-20)19(27)28/h10-11,13-18,20,22,24-26H,1,4-8H2,2-3H3,(H,27,28)