For professionals in the pharmaceutical industry, the procurement of high-quality chemical intermediates is a critical aspect of ensuring drug efficacy, safety, and manufacturing efficiency. Ethyl Ester Monohydrochloride, identified by CAS number 651324-08-2, is one such vital compound, primarily used in the synthesis of Oseltamivir. This guide is designed to assist procurement managers, R&D scientists, and quality assurance professionals in navigating the process of acquiring this essential pharmaceutical intermediate.

Understanding the Product: Ethyl Ester Monohydrochloride (CAS 651324-08-2) is a complex organic molecule whose precise structure is key to its function in synthesizing Oseltamivir. As a hydrochloride salt, it typically presents as a white to off-white solid. Its primary role is as a precursor, meaning its quality directly impacts the downstream API. Therefore, when you intend to buy this compound, understanding its specifications is the first step.

Key Considerations When Buying:

• Purity and Assay: The minimum purity level is a crucial specification. Suppliers often state purity as a percentage (e.g., ≥95%). Requesting detailed Certificates of Analysis (CoA) that include results from analytical tests such as HPLC, NMR, and potentially chiral analysis is paramount. These documents confirm the identity and purity of the batch.
• Supplier Selection: When sourcing from a global market, especially looking for a manufacturer or supplier in China, rigorous due diligence is essential. Consider:
  • Reputation and Track Record: Look for suppliers with established relationships in the pharmaceutical chemical industry.
  • Certifications: ISO certifications and adherence to Good Manufacturing Practices (GMP) where applicable, demonstrate a commitment to quality.
  • Production Capacity: Ensure the supplier can meet your required quantities, whether for research (grams) or large-scale manufacturing (kilograms or tons).
  • Technical Support: A good supplier will offer technical assistance and be responsive to queries.
• Pricing and Negotiation: Obtain multiple quotes to benchmark prices. Factors influencing price include the quantity ordered, specific purity requirements, and delivery terms (Incoterms like FOB, CFR, EXW). Understanding the price per unit (e.g., per kilogram) is essential for cost management.
• Safety Data Sheets (SDS): Always request and review the SDS for CAS 651324-08-2. This document provides critical information on handling, storage, potential hazards (e.g., H315, H319, H335), and emergency procedures, ensuring safe laboratory and industrial practices.
• Logistics and Delivery: Plan for shipping and customs. Factors like lead time, packaging requirements, and transportation methods (air, sea, land) need to be carefully considered to ensure timely delivery from the point of origin, such as a Chinese port.

As a dedicated manufacturer and supplier of pharmaceutical intermediates, we are committed to providing the global market with high-quality Ethyl Ester Monohydrochloride (CAS 651324-08-2). We understand the critical nature of this compound for Oseltamivir synthesis and strive to offer competitive pricing, robust quality assurance, and reliable supply chain solutions. We encourage pharmaceutical companies and researchers to engage with us to discuss their specific procurement needs, request detailed quotes, and establish a dependable partnership for this essential intermediate.