For procurement managers and textile formulators in the B2B sector, sourcing chemical raw materials efficiently and cost-effectively is a constant challenge. Disperse Red 343 (CAS 99035-78-6) is a vital dye for polyester and microfiber applications, and understanding how to procure it from reliable sources, particularly China, can significantly impact a company's bottom line and product quality. This guide outlines key considerations for buyers looking to purchase Disperse Red 343.

Understanding the Product: Disperse Red 343

Disperse Red 343, also known as C.I. Disperse Red 343 or Dianix Red SE 3B, is an azo-type disperse dye. It is prized for its bright red color, high color yield, and excellent fastness properties, especially sublimation and washing fastness. Its low solubility in water makes it ideal for dyeing hydrophobic fibers like polyester, which are widely used in apparel, home furnishings, and technical textiles. Its ability to provide vibrant, long-lasting shades makes it a preferred choice over many alternatives.

Key Factors for Buyers When Purchasing Disperse Red 343

When you decide to buy Disperse Red 343, several factors should guide your procurement process:

  1. Quality Assurance: Always prioritize suppliers who provide comprehensive Certificates of Analysis (COA) detailing key parameters such as purity, color strength, and fastness properties. For manufacturers in China, look for those with ISO certifications and a proven history of quality consistency.
  2. Supplier Reliability: A dependable supplier will ensure consistent product availability and timely delivery. Building a relationship with a manufacturer or their authorized distributor can lead to better pricing and preferential service.
  3. Technical Specifications: Verify that the Disperse Red 343 meets your specific application requirements. Key specifications to look for include its physical appearance (red powder), molecular formula (C20H22N6O2S), and CAS number (99035-78-6).
  4. Pricing and MOQ: Obtain quotes from multiple suppliers to compare pricing. Understand the Minimum Order Quantity (MOQ) and any volume discounts available. Buying in bulk from a primary manufacturer often yields the best price per unit.
  5. Customer Service and Support: A responsive supplier who can answer technical queries and provide pre-sales samples is invaluable. This demonstrates their commitment to customer satisfaction and product understanding.

The Advantage of Sourcing from China

China is a global hub for chemical manufacturing, offering a vast array of Disperse Red 343 suppliers. By carefully vetting potential partners, businesses can leverage competitive pricing, large production capacities, and advanced manufacturing techniques. Proactive communication and clear articulation of your needs will help you secure the best possible terms and a reliable supply chain for Disperse Red 343, ultimately contributing to the success of your textile dyeing operations.