InChI=1S/C13H18N2O6S/c14-7-1-2-8-15-13(16)12-11(20-12)9-3-5-10(6-4-9)21-22(17,18)19/h3-6,11-12H,1-2,7-8,14H2,(H,15,16)(H,17,18,19)