InChI=1/C13H13NO5S/c15-13(14-16)9-12(11-7-4-8-19-11)20(17,18)10-5-2-1-3-6-10/h1-8,12,16H,9H2,(H,14,15)/t12-/m1/s1/f/h14H 6803015D8BA0CD00