InChI=1/C19H27N5O/c1-4-15-11-18(25)23-19(22-15)14-5-6-17(20-12-14)21-16-7-9-24(10-8-16)13(2)3/h5-6,11-13,16H,4,7-10H2,1-3H3,(H,20,21)(H,22,23,25)/p+1/fC19H28N5O/h21,23-24H/q+1 F9A9267A7592E4A8