For any B2B buyer in the chemical and pharmaceutical industries, making informed purchasing decisions hinges on a thorough understanding of product specifications. 3,5-Difluoroaniline (CAS 372-39-4) is a critical intermediate, and its performance in downstream applications directly depends on its quality. As a dedicated manufacturer and supplier, we aim to equip our clients with the knowledge they need to confidently select and procure this vital compound. This guide outlines the key specifications to consider when purchasing 3,5-Difluoroaniline.

Purity (Assay): This is arguably the most critical specification. For 3,5-Difluoroaniline, the standard requirement is a high purity, typically ≥99.0% as determined by Gas Chromatography (GC). This assay level ensures that the compound is suitable for demanding synthesis reactions, particularly in pharmaceutical and agrochemical applications, where even trace impurities can lead to undesirable side reactions, reduced yields, or compromised final product quality. Always request a Certificate of Analysis (COA) that clearly states the assay and the analytical method used. If your application has even more stringent purity requirements, discuss this with your potential supplier, as custom specifications may be achievable.

Appearance: The physical appearance of 3,5-Difluoroaniline is an important initial indicator of its quality. It is typically described as a 'colorless to pale yellow crystal.' Any significant deviation from this description, such as dark coloration or the presence of foreign particles, could indicate contamination or degradation. While appearance alone is not a definitive measure of purity, it serves as a visual cue that complements other analytical data. For instance, material that melts within the specified range (37-41 °C) and presents as a pale crystal is generally indicative of good quality.

Physical Properties: Key physical properties provide further insights into the compound's characteristics and handling requirements. These include:

  • Melting Point: Typically in the range of 37-41 °C. A consistent melting point within this range is expected for high-purity crystalline material.
  • Boiling Point: Around 80°C at 20 mmHg, indicating its volatility under reduced pressure.
  • Density: Approximately 1.295 g/cm³.
  • Molecular Formula: C6H5F2N.
  • Molecular Weight: 129.11 g/mol.
These parameters are essential for process engineers and chemists planning synthesis or formulation steps.

Packaging and Storage: Proper packaging and storage are vital to maintain the integrity of 3,5-Difluoroaniline. It is commonly supplied in 25KG drums, but custom packaging can often be arranged. Storage recommendations usually involve keeping the container tightly closed in a cool, dry, and well-ventilated warehouse, away from open flames and heat sources. Understanding these requirements ensures that the material remains stable and safe from the point of purchase to its use in your facility.

Safety Information: While not a 'specification' in the analytical sense, understanding the safety data is crucial. 3,5-Difluoroaniline is classified as a hazardous substance. Always consult the Safety Data Sheet (SDS) provided by the supplier for detailed information on handling, personal protective equipment (PPE), first aid measures, and disposal procedures. This information is indispensable for ensuring a safe working environment.

When you decide to buy 3,5-Difluoroaniline, partnering with a reputable manufacturer and supplier like us ensures that all these specifications are met. We pride ourselves on our commitment to quality, transparency, and customer support. Feel free to contact us for detailed product information, pricing, and to discuss your specific project requirements.