In the precision-driven world of chemical manufacturing, consistency is king. For intermediates like 4-Phenoxyaniline (CAS 139-59-3), adherence to strict quality standards is not just about meeting a specification; it's about guaranteeing predictable results and reliable performance in downstream applications. This focus on the CAS number as a defining identifier, coupled with precise purity and physical characteristics, forms the bedrock of trust between chemical manufacturers and their clients.

What Does CAS 139-59-3 Mean for Quality?

The Chemical Abstracts Service (CAS) registry number, 139-59-3, uniquely identifies 4-Phenoxyaniline. While the CAS number itself doesn't denote quality, it serves as a universal reference point. When sourcing this compound, the critical quality indicators that accompany this CAS number are its purity (typically 99.0% min) and its physical form (white powder). A reliable supplier will consistently provide material that matches these established parameters, ensuring that your production processes remain unaffected by variations in raw material quality.

The Impact of Purity on Downstream Processes

For 4-Phenoxyaniline, its primary use as a dye intermediate means that purity directly influences the vibrancy, shade, and stability of the final dyes. Impurities can lead to:

  • Off-colors or dull shades.
  • Reduced dye intensity.
  • Poor lightfastness or washfastness.
  • Unwanted side reactions, lowering yield and increasing purification costs.
  • Potential regulatory issues if impurities are hazardous.

Therefore, manufacturers who prioritize buying 4-Phenoxyaniline from suppliers that guarantee high purity are investing in the quality and reliability of their own end products.

Choosing a Manufacturer for Consistent Supply

When you need to purchase 4-Phenoxyaniline, selecting a manufacturer with a strong commitment to quality control is essential. Look for suppliers who:

  • Provide detailed Certificates of Analysis (COA) for every batch, verifying purity and key parameters.
  • Have robust internal quality assurance protocols.
  • Are transparent about their production processes and raw material sourcing.
  • Can offer consistent supply, ensuring your operations are never halted due to material shortages.

Partnering with established Chinese manufacturers who specialize in producing high-purity chemicals like 4-phenoxyaniline can offer a significant advantage in terms of both quality and cost-effectiveness. They are equipped to handle bulk orders and maintain the stringent quality required by global industries.

In essence, while the CAS number provides a definitive identity, it is the consistent adherence to purity and physical specifications that truly ensures the quality and reliability of 4-Phenoxyaniline in your chemical production. Always request detailed documentation and partner with suppliers who demonstrate an unwavering commitment to quality.