¹H NMR (400 MHz, CDCl₃) δ 7.31 – 7.11 (m, 4H), 6.77 (d, J = 15.6 Hz, 1H), 6.37 (d, J = 15.6 Hz, 1H), 2.88 – 2.78 (m, 2H), 1.68 (dt, J = 12.7, 7.4 Hz, 2H), 1.47 (dq, J = 14.5, 7.3 Hz, 2H), 0.96 (t, J = 7.3 Hz, 3H). ¹³C NMR (101 MHz, CDCl₃) δ 138.97, 134.53, 129.78, 127.46, 126.52, 125.22, 124.62, 123.56, 32.22, 31.44, 21.92, 13.63. HRMS (EI): calcd for C₁₂H₁₅ClS: 226.0583, found: 226.0584。