2-Methoxybenzoic acid(CAS: 529-75-9)

2-Methoxybenzoic acid (CAS: 529-75-9) is a crystalline solid with a molecular weight of approximately 158.15 g/mol. It has a pKa of around 3.7, making it a weak acid. The compound is slightly soluble in water but more soluble in organic solvents like ethanol and acetone. It exhibits typical carboxylic acid reactivity, including esterification and neutralization reactions.

2-Methoxybenzoic acid is commonly synthesized via the methylation of benzoic acid using methyl iodide and a catalytic amount of sodium hydroxide. The reaction proceeds under basic conditions, with the methyl group being introduced at the oxygen atom in the methoxy group. The yield is typically around 80-85%, and the reaction is carried out in polar aprotic solvents like dimethylformamide (DMF) or dimethyl sulfoxide (DMSO).

2-Methoxybenzoic acid (CAS: 529-75-9) is used in various industries. In pharmaceuticals, it serves as an intermediate in the synthesis of several drugs. In the polymer industry, it is used as a plasticizer and stabilizer. It is also employed in the production of sensors and semiconductors due to its chemical reactivity and stability.

When handling 2-Methoxybenzoic acid (CAS: 529-75-9), it is important to wear appropriate personal protective equipment (PPE), including gloves, safety goggles, and a lab coat. Work must be conducted in a well-ventilated area or a fume hood to minimize inhalation risks. Spills should be cleaned up promptly using appropriate absorbents, and the area should be thoroughly washed down with water. Refer to the Material Safety Data Sheet (MSDS) for detailed safety and handling instructions.