Sodium Butylparaben, identified by CAS number 36457-20-2, is the water-soluble sodium salt of butyl p-hydroxybenzoate. It typically appears as a white, crystalline, hygroscopic powder that is highly soluble in aqueous systems, distinguishing it from its parent ester. This chemical acts as a potent broad-spectrum preservative, effectively inhibiting the growth of bacteria, yeasts, and molds across a wide pH range.
In industrial and research contexts, this compound is valued for its stability and ease of incorporation into water-based formulations. Because it is pre-solubilized, it eliminates the need for heating or organic solvents during the manufacturing process, making it an efficient choice for large-scale production. Proper handling requires storage in cool, dry conditions to prevent moisture absorption and maintain its chemical integrity over time.