4-Aminobenzoic Acid

4-Aminobenzoic Acid, also known as para-aminobenzoic acid (PABA), is an organic compound that belongs to the family of aminobenzoic acids. It is a white crystalline substance commonly used in various industrial and pharmaceutical applications. PABA is a precursor in the synthesis of folic acid in bacteria and has been historically used as a sunscreen agent due to its ability to absorb ultraviolet (UV) light.

Applications:

• Pharmaceuticals: PABA is used as an intermediate in the synthesis of folic acid and other pharmaceutical compounds. It has also been used in sunscreen formulations, although its use in this application has declined due to potential skin sensitivity issues.
• Cosmetics: Although less common today, PABA has been employed in cosmetic products, particularly in sunscreen lotions, due to its UV-absorbing properties.
• Chemical Synthesis: It serves as an intermediate in the production of dyes, drugs, and other organic compounds.
• Nutritional Supplements: PABA is sometimes included in vitamin B complex formulations, as it is related to folic acid, although it is not an essential vitamin for humans.

Handling and Storage:

• Handling: Use appropriate personal protective equipment (PPE) such as gloves, goggles, and lab coats. Avoid inhalation of dust, and prevent contact with skin and eyes. Handle in a well-ventilated area, and avoid creating dust. Wash thoroughly after handling.
• Storage: Store in a cool, dry, and well-ventilated area, protected from light and moisture. Keep the container tightly closed when not in use. Avoid storing near incompatible materials, such as strong oxidizing agents. Ensure that the storage environment is stable to prevent degradation.

4-Aminobenzoic Acid is a versatile chemical with applications in pharmaceuticals, cosmetics, and chemical synthesis. Proper handling and storage are essential to maintain its stability and effectiveness.