For R&D scientists and procurement managers in the chemical and pharmaceutical industries, the precise specification of raw materials is critical for project success. When considering the purchase of 4-Bromo-2,2-diphenylbutyronitrile (CAS 39186-58-8), understanding its key specifications ensures that you acquire a product that meets your exact needs.

The primary specification for 4-Bromo-2,2-diphenylbutyronitrile is its purity, typically stated as a minimum percentage, often greater than 98% as determined by High-Performance Liquid Chromatography (HPLC). This level of purity is essential for its role as an intermediate in pharmaceutical synthesis, where impurities can lead to side reactions or affect the final drug's efficacy and safety profile. When evaluating suppliers, always request a Certificate of Analysis (CoA) detailing the purity and any detected impurities.

Beyond purity, other important specifications include its physical appearance. 4-Bromo-2,2-diphenylbutyronitrile is generally described as a white to light yellow crystalline powder. Variations in color or form might indicate the presence of impurities or degradation, so consistency in appearance is a good indicator of quality.

The CAS number, 39186-58-8, serves as a unique identifier, crucial for accurate ordering and regulatory compliance. Always cross-reference this CAS number when inquiring about the product from any manufacturer or supplier.

When you plan to buy 4-Bromo-2,2-diphenylbutyronitrile, consider the available pack sizes. Suppliers often offer quantities ranging from grams to kilograms, catering to different scales of research and development. If your needs exceed standard catalog offerings, don't hesitate to contact a Chinese supplier for bulk pricing and custom packaging options. Many manufacturers are equipped to handle larger-scale production to meet commercial demands.

In essence, successful procurement of 4-Bromo-2,2-diphenylbutyronitrile involves a thorough review of its specifications, including purity, appearance, and CAS number. By partnering with reliable manufacturers and clearly communicating your requirements, you can ensure you receive a product that perfectly fits your chemical synthesis projects.