InChI=1/C19H20N4O2S/c1-13-8-15-18(20-11-21-19(15)26-13)23-6-4-22(5-7-23)10-14-2-3-16-17(9-14)25-12-24-16/h2-3,8-9,11H,4-7,10,12H2,1H3/p+1/fC19H21N4O2S/h22H/q+1 3BE495C3BEA23778