For procurement professionals and R&D scientists in the pharmaceutical and fine chemical industries, sourcing critical intermediates like 2,3-Pyridinedicarboxylic Anhydride (CAS 699-98-9) is a core responsibility. This compound, known for its role in synthesizing vital drugs like Moxifloxacin, demands careful consideration during the procurement process to ensure quality, cost-effectiveness, and supply chain reliability. This guide aims to equip buyers with the knowledge needed to make informed purchasing decisions.

Understanding the Product: 2,3-Pyridinedicarboxylic Anhydride

2,3-Pyridinedicarboxylic Anhydride, also referred to as quinolinic anhydride or furo[3,4-b]pyridine-5,7-dione, is a heterocyclic organic compound with the formula C7H3NO3. Its key specifications typically include a high purity of at least 99% and a low moisture content of less than 0.3%. Supplied as a white to yellow powder, it possesses a melting point of 137-139°C and a boiling point of 334.6°C. These physical and chemical properties are crucial for its application as a pharmaceutical intermediate, particularly in the synthesis of Moxifloxacin hydrochloride, a widely prescribed antibiotic. The anhydride functionality makes it highly reactive and suitable for various cyclization and derivatization reactions.

Key Considerations for Buyers

When you decide to buy 2,3-Pyridinedicarboxylic Anhydride, several factors are paramount:

• Purity and Quality Control: Always verify the purity specifications (≥99%) and moisture content (≤0.3%). Request a Certificate of Analysis (CoA) from the supplier to confirm these details and ensure batch-to-batch consistency.
• Supplier Reliability: Partner with established manufacturers and suppliers who have a proven track record in the chemical industry, especially those serving the pharmaceutical sector. Look for ISO certifications or other quality accreditations.
• Pricing and Value: Obtain quotes from multiple '2,3-Pyridinedicarboxylic Anhydride suppliers' to compare pricing. However, balance cost with quality and reliability. A slightly higher price for a consistently high-quality product can often be more economical in the long run due to fewer production issues.
• Packaging and Storage: The product is typically packed in 25kg cardboard drums. Ensure the packaging is suitable for preventing contamination and degradation during transit and storage. Proper storage conditions (cool, dry, well-closed container, away from moisture and heat) are essential for maintaining product integrity.
• Technical Support: A good supplier will offer technical support, potentially including information on handling, safety, and synthesis applications.

Finding a '2,3-Pyridinedicarboxylic Anhydride Manufacturer in China'

China is a significant global hub for chemical manufacturing, offering competitive pricing for intermediates like CAS 699-98-9. When searching for a manufacturer, look for companies that specialize in pharmaceutical intermediates and have a strong export capacity. Direct communication with potential manufacturers allows for clarification of specifications, negotiation of bulk purchase terms, and understanding of lead times. Your procurement strategy should include due diligence on potential suppliers to ensure they meet your quality and regulatory requirements.

In summary, procuring 2,3-Pyridinedicarboxylic Anhydride requires a strategic approach focusing on quality, supplier reliability, and cost-effectiveness. By diligently evaluating potential sources and understanding the critical specifications, buyers can secure this essential intermediate for their pharmaceutical manufacturing needs.