InChI=1/C14H16O9/c15-8(16)5-6-1-3-7(4-2-6)22-14-11(19)9(17)10(18)12(23-14)13(20)21/h1-4,9-12,14,17-19H,5H2,(H,15,16)(H,20,21)/t9-,10-,11+,12-,14?/s2