InChI=1/C20H18N4O3S/c25-19(15-7-4-8-16(11-15)24(26)27)22-20-21-17-13-23(10-9-18(17)28-20)12-14-5-2-1-3-6-14/h1-8,11H,9-10,12-13H2,(H,21,22,25)/p+1/fC20H19N4O3S/h22-23H/q+1 8FBE6791CA1C5D9E