4-Aminobenzoic Acid (PABA) is an aromatic amine compound with several important applications:
- Pharmaceuticals: Used in the synthesis of medications such as sulfonamide antibiotics, and it serves as a precursor in the production of certain drugs.
- Cosmetics: Commonly used in sunscreens as a UV filter, as it absorbs UV radiation and helps protect the skin from sun damage.
- Hair care: Used in some hair care products for its ability to help in hair growth and prevent graying.
- Biochemical research: Employed as a precursor in the synthesis of folic acid and other important biological molecules.
4-Aminobenzoic Acid is primarily used in pharmaceuticals, cosmetics, hair care products, and biochemical research.

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