The efficacy and safety of any chemical ingredient, particularly those used in sensitive applications like pharmaceuticals and cosmetics, hinge on its purity and adherence to strict specifications. For Sodium Butylparaben (CAS 36457-20-2), understanding these parameters is vital for formulators and procurement specialists alike. This article highlights the key specifications and the importance of sourcing high-purity material.

Sodium Butylparaben, a water-soluble derivative of butylparaben, is primarily valued for its broad-spectrum antimicrobial activity. Its effectiveness relies heavily on its chemical integrity. Manufacturers typically provide detailed specifications, often referencing pharmacopoeial standards such as BP (British Pharmacopoeia) or USP (United States Pharmacopeia). Key specifications commonly include:

  • Appearance: A white crystalline powder, free from foreign matter.
  • Assay: Typically ranges from 99.0% to 102.0% on a dry basis. This indicates the purity of the active compound.
  • pH: Usually specified within a range, often around 9.5-10.5, reflecting its alkaline nature in solution.
  • Moisture Content: Given its hygroscopic nature, a maximum moisture limit (e.g., ≤5.0%) is crucial to maintain product stability and prevent degradation.
  • Impurities: Limits are set for various potential impurities, such as sulfates (≤1200 ppm), chlorides (≤350 ppm), heavy metals (≤10 ppm, often as Pb), and arsenic (≤0.0002%). These limits are critical for ensuring safety, especially in pharmaceutical and cosmetic use.

For pharmaceutical and cosmetic applications, sourcing Sodium Butylparaben that meets these rigorous standards is non-negotiable. Impurities can affect product performance, stability, and, most critically, consumer safety. Therefore, when looking to buy Sodium Butylparaben (CAS 36457-20-2), it is imperative to partner with a reputable manufacturer or supplier that can provide documentation like a Certificate of Analysis (CoA) detailing these specifications and purity levels. Requesting a quote from a trusted supplier in China, who often specialize in these high-purity grades, is a strategic move.

The choice of supplier can significantly impact the consistency and quality of the final product. A reliable manufacturer will have robust quality control systems in place to ensure every batch meets the stated specifications. This attention to detail ensures that your formulations will perform as intended and comply with regulatory requirements. When you need to secure your supply chain for essential preservatives, focus on the specifications to guarantee the quality of your Sodium Butylparaben.