InChI=1/C15H14N4O4S/c1-15(2)22-11(20)8(12(21)23-15)7-17-13(16)19-14-18-9-5-3-4-6-10(9)24-14/h3-7H,1-2H3,(H3,16,17,18,19)/f/h19H,16H2 900D622E4A78F034