¹H NMR (400 MHz, CDCl₃) δ 8.89 (d, J = 4.4 Hz, 1H), 8.16 (d, J = 8.5 Hz, 1H), 8.05 (d, J = 8.4 Hz, 1H), 7.75 – 7.66 (m, 1H), 7.54 – 7.45 (m, 3H), 7.33 (d, J = 4.4 Hz, 1H), 7.30 (dd, J = 4.3, 1.9 Hz, 1H). ¹³C{¹H} NMR (101 MHz, CDCl₃) δ 149.9, 148.6, 143.0, 138.3, 129.7, 129.2, 128.7, 126.6, 126.6, 126.1, 125.5, 124.8, 121.0. HRMS (EI) m/z: calcd for C₁₃H₉NS, 211.0456; found, 211.0461.