For chemists, formulators, and procurement specialists, understanding the precise specifications and proper handling procedures for chemical intermediates is fundamental to ensuring safety, efficacy, and successful synthesis. Sodium 4-Chlorobenzenesulfonate (CAS: 5138-90-9) is a key compound, and this guide provides essential details on its properties and best practices for its use.

Understanding the Product Specifications

Sodium 4-Chlorobenzenesulfonate is a well-defined chemical compound with specific physical and chemical characteristics that dictate its suitability for various applications. Key specifications typically include:

  • Appearance: It is generally supplied as a White to Off-White Crystalline Powder. This physical form is important for ease of handling, weighing, and dissolution in reaction media.
  • CAS Number: 5138-90-9. This unique identifier is critical for accurate identification and regulatory compliance.
  • Molecular Formula: C6H4ClNaO3S. This formula details the elemental composition.
  • Molecular Weight: Approximately 218.63 g/mol. This figure is important for stoichiometric calculations in synthesis.
  • Purity: Manufacturers typically specify a high purity, often >98% as determined by High-Performance Liquid Chromatography (HPLC). High purity is particularly critical for pharmaceutical intermediates.
  • Stability: The compound is noted as being 'Very Hygroscopic.' This means it readily absorbs moisture from the air, which can affect its purity and handling properties over time.
  • Solubility: It shows slight solubility in polar organic solvents like DMSO and Methanol. Understanding its solubility profile is key for choosing appropriate reaction solvents.

Safe Handling and Storage Recommendations

Given its hygroscopic nature and potential hazards, proper handling and storage of Sodium 4-Chlorobenzenesulfonate are essential:

  • Storage Conditions: To maintain its quality and prevent degradation, it should be stored in a cool, dry place in a tightly closed container. Protection from moisture is paramount due to its hygroscopic nature. Storing under an inert atmosphere might be recommended for long-term preservation.
  • Personal Protective Equipment (PPE): When handling, appropriate PPE should always be worn. This includes safety goggles or a face shield, chemical-resistant gloves, and protective clothing. In environments where dust may be generated, respiratory protection (e.g., a dust mask or respirator) is also advised.
  • Ventilation: Work in a well-ventilated area or under a fume hood to minimize exposure to any airborne particles or vapors.
  • Incompatibilities: Avoid contact with strong oxidizing agents, as they can lead to potentially hazardous reactions.

Sourcing with Confidence

For reliable access to Sodium 4-Chlorobenzenesulfonate that meets these rigorous specifications, sourcing from reputable manufacturers like NINGBO INNO PHARMCHEM is recommended. They provide detailed product information and can assist with inquiries regarding purchase, pricing, and safe usage of this versatile chemical intermediate.

By adhering to these guidelines, researchers and manufacturers can effectively and safely utilize Sodium 4-Chlorobenzenesulfonate in their synthetic processes, ensuring optimal results and maintaining a high standard of operational safety.