InChI=1/C16H20N4S/c1-12-11-17-16-15(18-12)20(10-6-9-19(2)3)13-7-4-5-8-14(13)21-16/h4-5,7-8,11H,6,9-10H2,1-3H3/p+1/fC16H21N4S/h19H/q+1 E002B36295457987