For procurement managers and R&D scientists in the chemical industry, sourcing high-quality raw materials is paramount. Diethyl Fumarate (CAS 623-91-6) is a valuable organic intermediate with diverse applications, from polymer production to sophisticated pharmaceutical synthesis. However, ensuring you buy from a reputable manufacturer or supplier is key to success. This guide outlines what to look for when sourcing this crucial chemical.

Understanding Purity and Specifications

The primary consideration when purchasing Diethyl Fumarate is its purity. For many applications, especially in pharmaceutical intermediate synthesis, a minimum purity of 99.5% is essential. Impurities can lead to unwanted side reactions, lower yields, and compromised final product quality. Always verify that the supplier provides a detailed Certificate of Analysis (CoA) with each batch, confirming the product meets your required specifications, including assay and impurity profiles.

Key Applications Driving Demand

Diethyl Fumarate’s versatility makes it a sought-after chemical. It functions as a comonomer in the production of polystyrene, imparting specific characteristics to the polymer. Furthermore, it plays a critical role as a reagent in the preparation of potent neurokinin-1 receptor antagonists, a testament to its utility in advanced pharmaceutical research and development. Understanding these applications helps in assessing the criticality of consistent, high-quality supply.

Choosing the Right Supplier: What to Look For

When you search for a “Diethyl Fumarate manufacturer in China” or a “Diethyl Fumarate supplier,” consider the following:

  • Manufacturing Capabilities: A direct manufacturer often provides better pricing and more control over product quality and supply chain stability.
  • Packaging Options: For industrial use, packaging like 200kg drums is standard and practical. Ensure the packaging protects the integrity of the chemical during transit and storage.
  • Customer Service and Support: A responsive supplier with knowledgeable technical support can be invaluable, especially when troubleshooting or optimizing formulations.
  • Pricing and Order Flexibility: While cost is a factor, it should not compromise quality. Look for competitive pricing that reflects the value of a high-purity product and inquire about bulk purchase discounts.

Navigating the Purchase Process

For procurement professionals looking to buy Diethyl Fumarate, initiating an inquiry with a trusted supplier is the first step. Providing clear specifications, desired quantities, and delivery timelines ensures you receive an accurate quote. Many leading chemical suppliers in China offer sample services, allowing you to test the product before committing to a larger order. This due diligence is crucial for establishing a reliable long-term supply relationship.

By focusing on purity, understanding application requirements, and partnering with a dependable manufacturer and supplier, businesses can secure a consistent and high-quality supply of Diethyl Fumarate, empowering their research and production goals.