title: Methyl 2-allyl-4-hydr-oxy-2H-1,2-benzothia-zine-3-carboxyl-ate 1,1-dioxide.
abstract: In the title compound, C(13)H(13)NO(5)S, the thia-zine ring adopts a distorted half-chair conformation. Intra-molecular O-H⋯O and C-H⋯O hydrogen bonds give rise to two six-membered hydrogen bonded rings. In the crystal, mol-ecules are linked through weak inter-molecular C-H⋯O hydrogen bonds, resulting in a zigzag chain lying along the c axis.
authors.forename: Muhammad Nadeem
authors.initials: MN
authors.lastname: Arshad
authors.forename: Muhammad
authors.initials: M
authors.lastname: Zia-Ur-Rehman
authors.forename: Islam Ullah
authors.initials: IU
authors.lastname: Khan