5-Methyl-3-phenylisoxazole-4-carboxylic acid

In the title compound, C11H9NO3, the phenyl and isoxazole rings form a dihedral angle of 56.64 (8)degrees. The carboxy group is almost in the same plane as the isoxazole ring with a C-C-C-O torsion angle of - 3.3 (2)degrees. In the crystal, pairs of O - H center dot center dot center dot O hydrogen bonds link the molecules into head-to-head dimers. C - H center dot center dot center dot N hydrogen bonds and pi-pi stacking interactions between phenyl rings [centroid-centroid distance = 3.9614 (17) angstrom] link the dimers into a three-dimensional network.