InChI=1/C15H16N4O4S/c1-9-17-12-6-10(4-5-14(12)23-9)18-15(20)13-7-11(8-19(13)3)24(21,22)16-2/h4-8,16H,1-3H3,(H,18,20)/f/h18H 483DD4BC134B94D3