2H-1,4-Benzothiazin-3-one, 2-[2-(3-chlorophenylamino)-2-oxoethyl]-3,4-dihydro-,1-oxide Acetamide, N-(3-chlorophenyl)-2-(3,4-dihydro-1,3-dioxo- 2H-1,4-benzothiazine-2-yl)- NSC632923