InChI=1/C14H14N4O2S/c19-13(10-8-15-5-6-16-10)17-18-14(20)12-7-9-3-1-2-4-11(9)21-12/h5-8H,1-4H2,(H,17,19)(H,18,20)/f/h17-18H AFF42B7B2E0845A9