For chemical manufacturers and formulators, identifying and procuring critical raw materials like 4,4'-Diaminobenzenesulphanilide (CAS 16803-97-7) is a fundamental aspect of operations. This compound, essential for producing high-quality black and brown dyes, serves as a vital alternative to traditional benzidine derivatives, aligning with evolving safety and environmental standards. If you are a procurement manager or a research scientist looking to buy this key intermediate, understanding where and how to source it effectively is crucial for maintaining production efficiency and product quality.

Understanding the Demand for 4,4'-Diaminobenzenesulphanilide

The chemical industry relies on intermediates like 4,4'-Diaminobenzenesulphanilide for synthesizing a wide array of complex compounds. Its primary application is in the manufacture of dyes such as Acid Black 210 and Acid Black 234, which are indispensable in the textile, leather, and paper industries. As regulatory pressures increase globally regarding the use of hazardous substances, the demand for safer alternatives like 4,4'-Diaminobenzenesulphanilide has grown substantially. This makes it a product of significant commercial interest for chemical suppliers and end-users alike. When considering a purchase, it's important to note that availability, purity (typically 98% min), and competitive pricing are key decision factors.

Identifying Reputable Suppliers and Manufacturers

When searching for a supplier of 4,4'-Diaminobenzenesulphanilide (CAS 16803-97-7), a strategic approach is necessary to ensure a stable and high-quality supply. Buyers often look to established chemical manufacturers, particularly those located in regions known for their robust chemical production capabilities, such as China. These manufacturers often offer bulk quantities at competitive prices, making them attractive partners for large-scale operations. When evaluating potential suppliers, consider these critical aspects:

  • Purity and Specifications: Verify that the product meets the required assay (e.g., ≥98%) and that a Certificate of Analysis (COA) is readily available.
  • Manufacturing Capacity: Ensure the supplier has sufficient production capacity to meet your ongoing demand.
  • Pricing and Payment Terms: Obtain detailed quotes and understand payment and delivery terms. Requesting a sample for initial testing is also recommended.
  • Regulatory Compliance: Confirm that the supplier adheres to international quality and safety standards.
  • Customer Service and Logistics: Responsive communication and reliable shipping are vital for B2B procurement.

Companies that specialize in dye intermediates and fine chemicals are generally the best sources. Many global online chemical marketplaces and directories list numerous manufacturers and suppliers, allowing for easy comparison. For instance, inquiring directly with manufacturers or through their authorized distributors can provide direct access to product information, pricing, and technical support. Many suppliers are keen to provide quotes and facilitate sample orders, understanding the needs of industrial buyers.

Making an Informed Purchase Decision

Ultimately, securing a dependable supply of 4,4'-Diaminobenzenesulphanilide involves diligent research and communication with potential manufacturers and distributors. By focusing on established suppliers, verifying product specifications, and understanding the supply chain, businesses can confidently purchase this essential dye intermediate. Whether you are looking to buy for existing product lines or for new research and development, partnering with a trusted chemical supplier will ensure the quality and consistency needed for success in the competitive chemical market.