InChI=1S/C14H18N2O6S/c1-23-5-3-9(12(17)18)15-4-2-8-6-10(13(19)20)16-11(7-8)14(21)22/h2,4,6,9,11,16H,3,5,7H2,1H3,(H,17,18)(H,19,20)(H,21,22)/b8-2-,15-4-/t9-,11-/m0/s1