for the following products
11(6H)-one 5,5-dioxide | 3-Chloro-6-methyl-dibenzo[c, f][1, 2]thiazepin-11(6H)-one 5,5-dioxide | 8-Chloro-10-dioxo-11-methyl-dibenzo[c,f] [1,2]thiathiazepine-5-one | 8-Chloro-10-dioxo-11-methyl-dibenzo[c,f] [1,2]thiazepine-5-one | Tianeptine EP Impurity C and 3-Chloro-6,11-dihydro-6-methyl-5,5,11-trioxodibenzo[c,f][1,2]thiazepine
