熔点: 129.8-132.3 oC,1H NMR (400 MHz, CDCl3) δ 8.54 (d, J = 8.0 Hz, 2H), 8.10 (s, 1H), 7.75 (d, J = 8.0 Hz, 2H), 7.33 (t, J = 8.8 Hz, 4H), 2.56 (s, 3H), 2.53 (s, 3H). 13C{1H} NMR (101 MHz, CDCl3) δ 177.43, 157.61, 147.68, 142.16, 139.60, 135.76, 131.36, 131.11, 126.67, 126.57, 126.17, 124.71, 15.57, 14.63. HRMS (ESI) (M+H)+ Calcd. for C18H16NO2S2: 342.0617, Found: 342.0615.