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

In the title compound, C(11)H(10)O(3), there is an intra­molecular O—H⋯O hydrogen bond generating an S(6) ring motif. The O atom of the hy­droxy group deviates by 0.0200 (1) Å from the benzene ring to which it is attached. The propyne group is almost linear, the C—C C angle being 177.83 (15)°, and is almost coplanar with the benzene ring; the C—C—O—C torsion angle being only −1.1 (2)°. In the crystal, mol­ecules are linked via C—H⋯O hydrogen bonds, forming infinite C(11) chains running parallel to [103]. These chains are linked by a pair of C—H⋯O hydrogen bonds, enclosing R (2) (2)(8) inversion dimers, forming a corrugated two-dimensional network lying parallel to (103).