2,4-Dihydroxybenzoic acid

2,4-Dihydroxybenzoic acid (also known as 2,4-DHBA) is an organic compound that belongs to the class of benzoic acids. It is a type of dihydroxybenzoic acid that has two hydroxyl groups positioned at the 2nd and 4th places on the benzene ring.

Chemical Properties

2,4-Dihydroxybenzoic acid is a white to off-white crystalline powder. It is soluble in water and has a melting point of 200-202 °C. The compound has a molecular weight of 154.12 g/mol and a molecular formula of C7H6O4.

Synthesis

2,4-Dihydroxybenzoic acid can be synthesized through the oxidation of 2,4-dihydroxytoluene using potassium permanganate in an alkaline solution.

Applications

2,4-Dihydroxybenzoic acid is used in the synthesis of various pharmaceuticals and is a key intermediate in the production of antioxidants. It is also used in the production of dyes and pigments.

Safety

As with all chemicals, 2,4-Dihydroxybenzoic acid should be handled with care. It may cause irritation to the skin and eyes, and may be harmful if swallowed or inhaled.

See Also

• Benzoic acid
• Dihydroxybenzoic acid
• 2,4-dihydroxytoluene
• Potassium permanganate