InChI=1/C15H14N4O4S/c20-12-3-1-2-10(13(12)21)14-18-11(7-24-14)15(22)19(23)5-4-9-6-16-8-17-9/h1-3,6-8,20-21,23H,4-5H2,(H,16,17)/f/h16H EF0FD41B820D6F10