InChI=1S/C14H22O9/c15-8(16)6-4-2-1-3-5-7-22-14-11(19)9(17)10(18)12(23-14)13(20)21/h4,6,9-12,14,17-19H,1-3,5,7H2,(H,15,16)(H,20,21)/b6-4-