What is PABA? Uses, Properties, and Applications of 4-Aminobenzoic Acid

PABA (4-Aminobenzoic acid) is a chemical compound that is used as a precursor to various drugs, including sulfa antibiotics and nonsteroidal anti-inflammatory drugs (NSAIDs). It is also used in the production of certain dyes and pigments.

PABA is a white, crystalline solid that is soluble in water and has a melting point of 240-250°C. It is commonly used in the form of its sodium salt, which is known as sodium 4-aminobenzoate.

PABA is an important intermediate in the synthesis of various drugs, including:

* Sulfa antibiotics, such as sulfanilamide and sulfapyridine, which are used to treat bacterial infections.
* NSAIDs, such as ibuprofen and naproxen, which are used to relieve pain and reduce inflammation.
* Other drugs, such as antacids and anti-inflammatory agents.

PABA is also used in the production of certain dyes and pigments, such as the dye malachite green. It is also used in the manufacture of certain plastics and other materials.

Overall, PABA is an important chemical compound that has a wide range of applications in the production of various drugs, dyes, and other materials.