¹H NMR (400 MHz, CDCl₃) δ 8.40 (d, J = 13.7 Hz, 1H), 7.62 – 7.56 (m, 2H), 7.50 (dd, J = 8.0, 1.2 Hz, 1H), 7.43 (td, J = 7.8, 1.6 Hz, 1H), 7.34 (t, J = 8.1 Hz, 1H). ¹³C{¹H} NMR (101 MHz, CDCl₃) δ 138.81, 136.01, 135.08, 132.81, 130.72, 128.57, 128.49, 127.45. GC-MS (m/z): 183.