InChI=1/C13H13N3O4S/c1-20-9-4-2-8(3-5-9)7-14-13-16-15-12(19)10(21-13)6-11(17)18/h2-5,7,10H,6H2,1H3,(H,15,19)(H,17,18)/p-1/t10-/m1/s1/fC13H12N3O4S/h15H/q-1 2A31AAC96AB4B46F