¹H NMR (400 MHz, CDCl₃) δ 7.84 – 7.72 (m, 3H), 7.61 (s, 1H), 7.51 – 7.36 (m, 3H), 7.20 (d, J = 13.0 Hz, 1H), 6.00 (d, J = 13.0 Hz, 1H), 3.75 (s, 3H). ¹³C NMR (101 MHz, CDCl₃) δ 149.28, 133.91, 133.86, 131.98, 128.14, 127.60, 127.39, 126.14, 124.96, 123.70, 123.29, 105.33, 56.63. HRMS (EI): calcd for C₁₃H₁₂S: 200.0660, found: 200.0664。