InChI=1/C15H16N4O4S/c20-18(21)14-4-2-1-3-13(14)17-7-5-16(6-8-17)10-12-9-15(19(22)23)24-11-12/h1-4,9,11H,5-8,10H2/p+1/fC15H17N4O4S/h16H/q+1 7DC77ECA95A2561E