¹H NMR (400 MHz, CDCl₃) δ 8.81 (s, 1H), 8.15 (d, J = 8.3 Hz, 1H), 8.10 (d, J = 8.4 Hz, 1H), 7.73 (t, J = 7.5 Hz, 1H), 7.62 (t, J = 7.6 Hz, 1H), 7.51 (t, J = 7.2 Hz, 2H), 7.44 (d, J = 6.9 Hz, 1H), 7.40 (d, J = 7.5 Hz, 2H), 2.65 (s, 3H). ¹³C{¹H} NMR (101 MHz, CDCl₃) δ 151.5, 147.0, 140.6, 138.6, 134.5, 130.0, 129.9, 128.9, 128.4, 128.0, 127.6, 126.7, 124.2, 15.6. HRMS (EI) m/z: calcd for C₁₆H₁₃N, 219.1048; found, 219.1051.