For research and development chemists, understanding the precise specifications of chemical compounds is fundamental to experimental success. 4-Chloropyridinium Chloride (CAS 7379-35-3) is no exception. This article breaks down the key specifications of this important pharmaceutical intermediate and explains why these details matter when you buy from a chemical manufacturer.

Physical Appearance and Form: The First Impression

4-Chloropyridinium Chloride is typically supplied as a crystalline powder. Its appearance can range from off-white to a pale yellow-beige. This visual characteristic is often the first indicator of its quality. Manufacturers carefully control crystallization processes to achieve the desired particle size and morphology, which can influence its dissolution rates and handling properties. As a trusted supplier, we ensure that our product consistently meets these visual specifications.

Purity: The Cornerstone of Performance

The purity of 4-Chloropyridinium Chloride is paramount, especially when used in pharmaceutical synthesis. High purity levels, often specified as ≥98% or ≥98.0% by HPLC (High-Performance Liquid Chromatography), are crucial. Impurities can lead to unwanted side reactions, reduced yields, and contaminated final products. Reputable manufacturers, such as our company, employ stringent analytical techniques to verify purity and provide detailed Certificates of Analysis (CoA) with each batch. This ensures researchers can trust the material they are using.

Solubility and Reactivity: Enabling Chemical Transformations

Understanding the solubility profile of 4-Chloropyridinium Chloride is key to its effective use in synthesis. It is generally soluble in polar solvents like water and Dimethyl Sulfoxide (DMSO). This solubility facilitates its integration into various reaction media. Furthermore, its chemical structure, featuring a pyridine ring with a chlorine substituent, makes it a versatile reagent. The chlorine atom can be displaced in nucleophilic substitution reactions, and the pyridine nitrogen can participate in various transformations, making it an excellent building block for more complex molecules. When you consider the price, factor in how these properties impact your synthesis efficiency.

Melting Point and Stability: Handling and Storage

The melting point of 4-Chloropyridinium Chloride is approximately 210°C (sublimes). This relatively high melting point indicates good thermal stability under typical laboratory conditions. Proper storage, usually below 30°C and protected from moisture and light, is recommended to maintain its integrity. As a chemical manufacturer, we provide clear guidance on handling and storage to ensure the product remains within specification throughout its shelf life.

Partnering with a Knowledgeable Supplier

Choosing the right supplier for your chemical needs involves more than just competitive pricing. It requires a partner who understands the critical nature of these specifications and can reliably deliver products that meet them. We encourage researchers and procurement specialists to inquire about our 4-Chloropyridinium Chloride and to leverage our expertise. Whether you need to purchase for R&D or production, our commitment to quality ensures you receive a product you can depend on.