title: Methyl 2-acetonyl-4-hydr-oxy-2H-1,2-benzothia-zine-3-carboxyl-ate 1,1-dioxide.
abstract: In the mol-ecule of the title compound, C(13)H(13)NO(6)S, the thia-zine ring adopts a distorted sofa conformation. The enolic H atom is involved in intra-molecular O-H⋯O hydrogen bonding besides the weaker C-H⋯O=S and C-H⋯O=C inter-actions.
authors.forename: Matloob
authors.initials: M
authors.lastname: Ahmad
authors.forename: Hamid
authors.initials: H
authors.lastname: Latif Siddiqui
authors.forename: Muhammad
authors.initials: M
authors.lastname: Zia-Ur-Rehman
authors.forename: Graham John
authors.initials: GJ
authors.lastname: Tizzard
authors.forename: Saeed
authors.initials: S
authors.lastname: Ahmad