InChI=1S/C16H24O9/c1-2-3-4-5-6-7-8-12(23-8)15(22)25-16-11(19)9(17)10(18)13(24-16)14(20)21/h6-13,16-19H,2-5H2,1H3,(H,20,21)/b7-6-