InChI=1/C16H17ClN4O4S/c1-21(2)26(24,25)14-5-3-4-11(10-14)15(22)19-20-16(23)18-13-8-6-12(17)7-9-13/h3-10H,1-2H3,(H,19,22)(H2,18,20,23)/f/h18-20H E3FDA6DBA24C17EC