In the complex world of chemical procurement, understanding the precise specifications of a compound is crucial for ensuring its suitability for a particular application. 2-Chloro-4-iodopyridine (CAS 153034-86-7) is a prime example of a specialized chemical intermediate where attention to detail regarding its properties can significantly impact research and manufacturing outcomes. This article aims to demystify the key specifications and properties that buyers should consider when looking to buy 2-chloro-4-iodopyridine.

The most frequently cited specification for 2-Chloro-4-iodopyridine is its purity. Typically, for use in demanding applications like pharmaceutical synthesis or advanced materials science, a purity of ≥99% is highly sought after. This high purity level is often achieved through meticulous synthesis and purification processes by the manufacturer. Buyers should always consult the Certificate of Analysis (COA) provided by the supplier to verify the exact purity and the analytical methods used for its determination, such as HPLC or GC. Lower purity grades might be acceptable for less sensitive applications, but it's essential to match the specification to the intended use.

Beyond purity, other properties are important. The molecular formula, C5H3ClIN, and molecular weight, 239.44 g/mol, are fundamental identifiers. The physical appearance, often described as an off-white crystal or crystalline powder, can also be an indicator of quality and handling. While not always a primary driver for purchase, understanding the melting point (typically around 41-46°C for the solid form) and solubility (e.g., soluble in chloroform and ethyl acetate) can be useful for process chemists when designing reaction conditions or purification steps.

When sourcing from a supplier in China or elsewhere, it's also important to consider packaging and transportation. Reputable suppliers will offer appropriate packaging to maintain product integrity during transit and storage. Furthermore, understanding the lead times and potential for bulk purchasing is vital for inventory management and project planning. By thoroughly reviewing these specifications and engaging with knowledgeable suppliers, procurement professionals can confidently select the right grade of 2-Chloro-4-iodopyridine for their critical projects, ensuring efficiency and success.