For procurement specialists in the chemical and pharmaceutical industries, thoroughly understanding product specifications is fundamental before making a purchase. Thionicotinamide (CAS 4621-66-3), a crucial pharmaceutical intermediate, requires careful evaluation of its key parameters to ensure it meets the stringent requirements of downstream applications. This guide outlines the essential specifications buyers should consider when looking to buy Thionicotinamide.

The primary specification that buyers focus on is purity. Thionicotinamide is typically supplied with an assay of 98.0% or 99.0% by HPLC. This high level of purity is critical, especially in pharmaceutical synthesis, where impurities can affect the efficacy, safety, and regulatory compliance of the final product. Always request a Certificate of Analysis (CoA) that details the purity and the methods used for its determination.

Appearance is another important visual indicator. Thionicotinamide is commonly described as a yellow crystalline powder. Deviations from this description could indicate issues with the manufacturing process or storage conditions. A consistent appearance is a good sign of product integrity.

Other key physical and chemical properties to note include the melting point, which typically falls within the range of 185-190°C. Moisture content, usually specified as ≤0.5%, is also relevant, as excess moisture can impact stability and reactivity. Understanding these properties helps ensure the material performs as expected in your synthesis processes.

When seeking to purchase Thionicotinamide, it is vital to partner with a reputable manufacturer or supplier. Look for companies that can provide consistent batch-to-batch quality, stable supply capabilities, and clear pricing structures. Suppliers based in China are often competitive in this market, offering strong manufacturing capabilities. Always verify the supplier's credentials and inquire about their quality management systems.

By meticulously evaluating these specifications and choosing a reliable supplier, procurement managers can confidently acquire Thionicotinamide that meets their exact needs, ensuring smooth operations and high-quality output in their pharmaceutical projects.