Methyl 3-Formyl-4-hydroxybenzoate is a useful synthetic intermediate in the synthesis of 1,2-Benzisoxazole-5-carboxylic Acid (B197900). Also a useful synthetic intermediate in the synthesis of Roflumilast (R639700); a selective phosphodiesterase 4 (PDE4) inhibitor and antiasthmatic in the treatment of chronic obstructive pulmonary disease.