InChI=1/C19H20N2/c1-12-3-6-14(7-4-12)18-19-15(9-10-20-18)16-11-13(2)5-8-17(16)21-19/h3-8,11,18-20H,9-10H2,1-2H3/p+1/t18-,19-/m1/s1/fC19H21N2/h21H/q+1 7D8810D20830EC66