1-[2-Hydroxy-4-(prop-2-yn-1-yloxy)-phenyl]ethanone

In the title compound, C11H10O3, there is an intramolecular O-H center dot center dot center dot O hydrogen bond generating an S(6) ring motif. The O atom of the hydroxy group deviates by 0.0200 (1) angstrom from the benzene ring to which it is attached. The propyne group is almost linear, the C-C C angle being 177.83 (15)degrees, and is almost coplanar with the benzene ring; the C-C-O-C torsion angle being only -1.1 (2)degrees. In the crystal, molecules are linked via C-H center dot center dot center dot O hydrogen bonds, forming infinite C(11) chains running parallel to [103]. These chains are linked by a pair of C-H center dot center dot center dot O hydrogen bonds, enclosing R-2(2)(8) inversion dimers, forming a corrugated two-dimensional network lying parallel to (103).