3-Methylphthalic Acid is a by-product during the synthesis of 3-Methylhexahydrophthalic Anhydride (M312385), a useful reagent for the synthesis of?geometrical isomers of 1,2,3-trimethylcyclohexane. It can also be used to prepare?hydroxycarbamoyl carboxylic acids for the flotation of diaspore and aluminosilicate minerals.
