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The title compound, C11H9NO3, contains an isoxazole and a hydroxybenzylidene ring, which are inclined to each another by 3.18 (8)°. There is an intramolecular C—H...O contact forming an S(7) ring. In the crystal, molecules stack head-to-tail in columns along the b-axis direction, linked by offset π–π interactions [intercentroid distances of 3.676 (1) and 3.723 (1) Å]. The columns are linked by O—H...O and O—H...N hydrogen bonds, forming layers parallel to the ab plane. The layers are linked by C—H...O hydrogen bonds, forming a supramolecular three-dimensional framework. An analysis of the Hirshfeld surfaces points to the importance of the O—H...O and O—H...N hydrogen bonding in the packing mechanism of the crystal structure.

The title compound, C11H9NO3, contains an isoxazole and a hydroxybenzylidene ring, which are inclined to each another by 3.18 (8)Å. There is an intramolecular C-H...O contact forming an S(7) ring. In the crystal, molecules stack head-to-tail in columns along the b-axis direction, linked by offset π-π interactions [intercentroid distances of 3.676 (1) and 3.723 (1) Å ]. The columns are linked by O-H...O and O-H...N hydrogen bonds, forming layers parallel to the ab plane. The layers are linked by C-H...O hydrogen bonds, forming a supramolecular three-dimensional framework. An analysis of the Hirshfeld surfaces points to the importance of the O-H...O and O-H...N hydrogen bonding in the packing mechanism of the crystal structure. [ABSTRACT FROM AUTHOR]