InChI=1S/C14H16O8S/c15-13(16)10-8-6-4-2-1-3-5-7-9-12(11-14(17)18)22-23(19,20)21/h1-10,12H,11H2,(H,15,16)(H,17,18)(H,19,20,21)/b2-1+,5-3-,6-4+,9-7+,10-8-