InChI=1/C19H20N2/c1-14(21(2)3)16-8-6-9-17(13-16)19-18-10-5-4-7-15(18)11-12-20-19/h4-14H,1-3H3/p+1/t14-/m1/s1/fC19H21N2/h21H/q+1 5B96B7A422D4A3EB