¹H NMR (400 MHz, CDCl₃) δ 9.16 (s, 1H), 8.19 (s, 1H), 8.07 (d, J = 9.0 Hz, 1H), 7.85 (s, 1H), 7.69 (d, J = 7.5 Hz, 2H), 7.64 (d, J = 9.0 Hz, 1H), 7.53 (t, J = 7.3 Hz, 2H), 7.45 (t, J = 7.3 Hz, 1H). ¹³C{¹H} NMR (101 MHz, CDCl₃) δ 150.1, 145.6, 137.3, 134.7, 132.7, 132.2, 130.8, 130.2, 129.2, 128.6, 128.4, 127.4, 126.5. HRMS (EI) m/z: calcd for C₁₅H₁₀ClN, 239.0502; found, 239.0503.