For any professional involved in chemical procurement or R&D, understanding product specifications is the first step to making an informed purchase. This is particularly true for specialized intermediates like 2,5-Difluoro-4-nitrobenzoic acid (CAS: 116465-48-6), a critical component in many organic synthesis pathways, especially within the pharmaceutical sector.

The primary specification to focus on when you intend to buy 2,5-Difluoro-4-nitrobenzoic acid is its assay or purity. Reputable manufacturers, such as those who supply from China, typically guarantee a purity of 98.0% or higher, often determined by High-Performance Liquid Chromatography (HPLC). This high purity is essential to minimize side reactions, ensure reproducible results, and meet the stringent requirements of pharmaceutical intermediate manufacturing.

Next, appearance is an important physical characteristic. For 2,5-Difluoro-4-nitrobenzoic acid, it is commonly described as a light yellow crystalline powder. Any significant deviation from this description could indicate impurities or degradation, prompting further investigation.

The CAS number (116465-48-6) serves as a unique identifier, ensuring you are purchasing the correct chemical compound. Always verify that the CAS number matches your requirements.

Other key specifications might include moisture content, which is often specified to be less than 0.5% for many fine chemicals to ensure stability and accurate weighing. While the melting point of 147-148°C is a standard reference, it's the combination of these parameters that defines the product's quality.

When sourcing from a manufacturer like NINGBO INNO PHARMCHEM CO.,LTD., requesting a detailed Certificate of Analysis (CoA) is a standard procedure. This document typically outlines the tested specifications for a particular batch, including purity, appearance, and CAS number, providing assurance of quality. For bulk purchases, obtaining a quotation that clearly lists these specifications and confirms pricing is crucial for strategic procurement.

By meticulously reviewing these specifications before you buy 2,5-Difluoro-4-nitrobenzoic acid, you can ensure that the material is fit for purpose, optimize your synthetic processes, and maintain the high standards expected in the chemical and pharmaceutical industries.