InChI=1/C15H16N4O4S/c1-9-11(14(20)19-15(16)17)5-6-12(13(9)24(2,21)22)23-10-4-3-7-18-8-10/h3-8H,1-2H3,(H4,16,17,19,20)/f/h16-17H2 C3EB811A4B6AB66A