For businesses relying on specialized chemical intermediates, the ability to consistently source high-quality materials is paramount. 1,4-Bis(4-aminophenoxy)benzene, identified by CAS number 3491-12-1, is one such critical compound, primarily utilized in the synthesis of advanced polymers. This guide focuses on how to effectively find and partner with reliable suppliers for this important diamine monomer.

Identifying Your Requirements: Purity and Application

Before initiating a search for suppliers, clearly define your needs. 1,4-Bis(4-aminophenoxy)benzene is often sought for its high purity, with specifications commonly requiring 99% or more. Understand the typical appearance (off-white to light yellow powder) and melting point (172-173°C) to ensure you are receiving the correct material. The intended application—whether for high-performance polyimides in aerospace, electronic components, or research purposes—will dictate the precise quality and quantity you need. Always confirm the CAS number is 3491-12-1.

Where to Find Suppliers: Global and Regional Sources

The global market offers numerous avenues for sourcing 1,4-Bis(4-aminophenoxy)benzene. China is a prominent region for chemical manufacturing, with many suppliers offering this intermediate. Online chemical marketplaces and B2B platforms are excellent starting points. Look for suppliers who:

  • Have detailed product listings: Including CAS number, molecular formula, purity, and typical physical properties.
  • Provide Certificates of Analysis (CoA): These documents are crucial for verifying product quality and batch consistency.
  • Demonstrate industry experience: Suppliers with a long-standing presence in the chemical industry often have more robust quality control and supply chain management.
  • Offer competitive pricing: Obtain multiple quotes to benchmark pricing, but always balance cost with quality and reliability.

When engaging with potential suppliers, don't hesitate to ask about their manufacturing processes, quality control measures, and lead times. Direct communication is key to building trust.

Vetting Suppliers for Reliability and Value

Beyond initial identification, vetting potential suppliers is crucial. Consider factors such as:

  • Customer Reviews and Testimonials: What do other buyers say about their experience?
  • Minimum Order Quantities (MOQ) and Packaging: Ensure these align with your needs, whether you require small research quantities or bulk industrial supply (e.g., 25kg drums).
  • Payment Terms and Shipping Capabilities: Understand their payment structure and how they handle international shipping.
  • Technical Support: A supplier that can offer technical assistance or answer specific questions about the product's suitability for your application adds significant value.

By diligently following these steps, procurement managers can identify and secure reliable suppliers of 1,4-Bis(4-aminophenoxy)benzene (CAS 3491-12-1). A well-chosen supplier is not just a vendor but a partner in your material innovation and production efforts.