InChI=1/C19H18N4O2S/c1-12-16(17(22-19(26)21-12)14-5-3-2-4-6-14)18(25)23-20-11-13-7-9-15(24)10-8-13/h2-11,17,24H,1H3,(H,23,25)(H2,21,22,26)/b20-11+/t17-/m1/s1/f/h21-23H AD56ED31F0E5ABDF