InChI=1/C13H16N2O4S/c1-9-4-6-15(7-5-9)20(17,18)10-2-3-11-12(8-10)19-13(16)14-11/h2-3,8-9H,4-7H2,1H3,(H,14,16)/f/h14H 2E4586C26004F9E6