InChI=1/C19H18N2/c1-11-5-6-17-15(9-11)18-12(2)16-10-21(4)8-7-14(16)13(3)19(18)20-17/h5-10H,1-4H3/p+1/fC19H19N2/h20H/q+1 EB42205F4F564AAC