5-(4-Hy­droxy-3-meth­oxy­benz­yl)-1,3-thia­zolidine-2,4-dione monohydrate

In the title compound, C11H11NO4S·H2O, the five-membered thia­zolidine ring is nearly planar, with a maximum deviation of 0.010 (2) A. The dihedral angle between the thia­zolidine and benzene rings is 49.16 (9)°. Inter­molecular O—H⋯O and N—H⋯O hydrogen bonding is present in the crystal structure.