For professionals in the chemical and pharmaceutical industries, the precise specifications of raw materials and intermediates like Ethyl 3-chloro-4-fluorobenzoate (CAS: 137521-81-4) are non-negotiable. These parameters directly influence the success of synthesis processes, product quality, and regulatory compliance. Understanding these specifications allows procurement managers and R&D scientists to make informed decisions when sourcing this important organic intermediate.

A key specification for Ethyl 3-chloro-4-fluorobenzoate is its assay, which indicates the purity of the compound. Typically, suppliers aim for an assay of ≥99.0%. This high level of purity is crucial for eliminating unwanted side reactions and by-products in complex organic syntheses, particularly in pharmaceutical applications where even trace impurities can have significant consequences. When sourcing, always look for suppliers who provide detailed Certificates of Analysis (CoA) that clearly state the assay results.

The physical appearance is another vital characteristic. Ethyl 3-chloro-4-fluorobenzoate is commonly supplied as a white solid. Variations in color or form might indicate contamination or degradation, so a consistent white solid appearance is a good indicator of quality. Furthermore, moisture content is a critical parameter; a specification of ≤0.2% is standard for high-quality material, as excess moisture can interfere with certain reactions or affect the stability of the compound.

Other physical properties, such as melting point (38-41ºC), boiling point (255.4ºC), and density (1.266 g/cm³), are also important for handling, storage, and reaction design. These values help chemists predict the behavior of the compound under various conditions. For B2B buyers looking to purchase Ethyl 3-chloro-4-fluorobenzoate from manufacturers in China, NINGBO INNO PHARMCHEM CO.,LTD. emphasizes adherence to these stringent specifications. Understanding these details ensures that you receive a product that meets the demands of your synthesis and research needs, facilitating smooth bulk purchases.