2-Chlorodibenzo(b,g)-1,4-thiazocin-6(5H,7H)-one 5,6-Dihydro-2-chloro-5H,7H-dibenzo(b,g)(1,4)thiazocin-6-one 5H,7H-Dibenzo(b,g)(1,4)thiazocin-6-one, 5,6-dihydro-2-chloro- HQ2452000