[2-(2,5-Dichloro­benz­yl)-4-hy­droxy-1,1-dioxo-2H-1,2-benzothia­zin-3-yl](phen­yl)methanone

In the title mol­ecule, C(22)H(15)Cl(2)NO(4)S, the heterocyclic thia­zine ring adopts a half-chair conformation, with the S and N atoms displaced by 0.343 (5) and 0.402 (5) Å, respectively, on opposite sides of the mean plane formed by the remaining ring atoms. The mol­ecular structure is consolidated by an intra­molecular O—H⋯O hydrogen bond, which generates an S(?) ring. In the crystal, the molecules are linked by C—H⋯O interactions into [010] chains.