InChI=1/C14H15N3O4S/c1-22(19,20)17-8-2-3-10-4-5-11(9-12(10)17)16-14(18)13-6-7-15-21-13/h4-7,9H,2-3,8H2,1H3,(H,16,18)/f/h16H 4A4E8850D5227B91