3-(2-Chloro-phen-yl)-4-hy-droxy-furan-2(5H)-one.

In the title mol-ecule, C(10)H(7)ClO(3), the butyrolactone core, a furan-2(5H)-one, forms a dihedral angle of 59.21†(5)° with the benzene ring. In the crystal, two types of hydrogen bonds (O-H⋯O and C-H⋯Cl) link mol-ecules into infinite chains along the b axis. π-π contacts [centroid-centroid distances = 3.6359†(10) and 3.8776†(11)†à ] link the chains into a three-dimensional network.