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