When procuring chemical intermediates like 2-Chloro-5-nitropyridine (CAS 4548-45-2), understanding the detailed specifications is crucial for ensuring it meets the requirements of your specific applications. As a key building block for pharmaceuticals, agrochemicals, and fine chemicals, its quality directly impacts the outcome of your synthesis processes. This guide outlines the critical specifications to consider when you decide to buy 2-Chloro-5-nitropyridine.

Chemical Identity and Purity: The Foundation of Quality
The primary identifier for 2-Chloro-5-nitropyridine is its CAS number: 4548-45-2. This unique identifier ensures you are sourcing the correct chemical compound. The most critical specification is purity, typically stated as a percentage. For most applications, especially in pharmaceutical and advanced agrochemical synthesis, a minimum purity of 99% is desired. Suppliers should clearly indicate the analytical method used to determine purity, such as GC (Gas Chromatography) or HPLC (High-Performance Liquid Chromatography).

Appearance: A Visual Indicator of Quality
2-Chloro-5-nitropyridine is generally described as a white to light yellow crystalline powder. While slight variations in color can occur due to trace impurities or particle size, a distinctly off-color or clumpy appearance might indicate issues with handling, storage, or manufacturing. When you purchase this intermediate, ensuring it matches the typical appearance is a good first step in quality verification.

Molecular Properties: Essential Data for Synthesis
Key molecular properties provide vital information for chemical calculations and process design:

  • Molecular Formula: C5H3ClN2O2
    This formula indicates the atomic composition of the compound.
  • Molecular Weight: 158.54 g/mol
    Crucial for stoichiometric calculations in reactions.
  • Melting Point: Typically reported in the range of 106-110°C.
    A precise melting point range is a strong indicator of purity.
  • Solubility: Sparingly soluble in water, but soluble in organic solvents like methanol and ethanol.
    Understanding solubility is key for selecting appropriate reaction solvents.

Other Important Specifications
When considering purchasing 2-Chloro-5-nitropyridine, also look for:

  • Storage Conditions: Usually recommended to be stored in a dark, sealed, and dry environment at room temperature. Proper storage ensures the compound remains stable and maintains its purity.
  • Packaging: Common packaging includes fiber drums or bags, often in quantities like 25kg or 50kg, or customized as per the buyer's request.
  • Hazard Information: Understanding the safety data (e.g., hazard statements like H315, H319, H335) is crucial for safe handling and compliance.

As a leading manufacturer and supplier of 2-Chloro-5-nitropyridine, NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing products that meet these exacting specifications. We ensure our materials are of the highest purity and are accompanied by comprehensive documentation. If you are looking to buy this intermediate, contact us for detailed product information and competitive pricing.