熔点：70.8-74.6 ^oC。¹H NMR (400 MHz, CDCl₃) δ 9.22 (s, 1H), 8.36 (s, 1H), 8.09 (d, J = 8.5 Hz, 1H), 7.84 (d, J = 8.1 Hz, 1H), 7.68 (t, J = 7.6 Hz, 1H), 7.63 – 7.49 (m, 2H), 6.87 (s, 1H), 6.56 (s, 1H). ¹³C{¹H} NMR (101 MHz, CDCl₃) δ 151.4, 147.1, 147.0, 143.1, 129.3, 129.2, 129.1, 127.9, 127.9, 127.2, 124.1, 112.0, 106.7. HRMS (EI) m/z: calcd for C₁₃H₉NO, 195.0684; found, 195.0681.