For procurement managers in the chemical and pharmaceutical industries, securing a consistent and high-quality supply of essential intermediates is paramount. One such critical compound is 3-Chlorophthalic Anhydride (CAS 117-21-5). This article aims to guide you through the process of sourcing this versatile chemical, highlighting key considerations when looking to buy from manufacturers and suppliers, particularly those based in China.

Understanding 3-Chlorophthalic Anhydride's Role

3-Chlorophthalic Anhydride is a significant fine chemical intermediate. Its primary applications lie in the synthesis of advanced materials like polyimide engineering plastics, where its structure contributes to enhanced thermal stability and mechanical strength. Furthermore, it serves as a crucial building block in the production of various pharmaceutical intermediates and agrochemicals. When considering its purchase, understanding these end-uses helps in specifying the required purity and quantity.

Key Specifications for Procurement

When evaluating potential suppliers, pay close attention to the technical specifications. Typical requirements for 3-Chlorophthalic Anhydride include:

  • Purity: Often specified as ≥98.0% (GC) or higher for critical applications.
  • Appearance: Usually described as a white or pale yellow crystalline powder and chunks.
  • Melting Point: Typically in the range of 123-126 °C.
  • Boiling Point: Around 170 °C (lit.).

Ensuring these specifications are met by the manufacturer is vital for the success of your downstream processes. Always request a Certificate of Analysis (COA) for each batch to verify quality.

Navigating the Supplier Landscape

The global market offers numerous suppliers for 3-Chlorophthalic Anhydride. For procurement managers seeking competitive pricing and robust supply chains, China is a prominent manufacturing hub. When identifying a reliable manufacturer or supplier, consider the following:

  • Production Capacity: Look for suppliers with demonstrated production capabilities, such as those producing 100 tons or more, to ensure they can meet demand.
  • Supply Ability: A stated supply ability (e.g., 50 tons) indicates their capacity for consistent fulfillment.
  • Logistics and Incoterms: Understand their Incoterms (FOB, CFR, CIF, EXW) and preferred transportation methods (Ocean, Land, Air) to manage shipping costs and timelines effectively.
  • Payment Terms: Flexible payment options like L/C, T/T, D/P, and PayPal can streamline transactions.

Engaging with a supplier that offers comprehensive support, from quotation to delivery, simplifies the procurement process. Don't hesitate to ask for a quote for 3-Chlorophthalic Anhydride (CAS 117-21-5) to compare offerings.

Why Choose Us?

As a leading manufacturer and supplier of 3-Chlorophthalic Anhydride from China, we are committed to providing high-purity products at competitive prices. We understand the critical nature of intermediates in your production cycles and strive to ensure timely delivery and excellent customer service. Whether you need this compound for polyimide synthesis, as a pharmaceutical intermediate, or for pesticide manufacturing, we are equipped to meet your demands. Contact us today to discuss your requirements and receive a quote for your next purchase of 3-Chlorophthalic Anhydride.