Oxalyl Chloride (CAS 79-37-8) is a highly versatile chemical intermediate that plays a crucial role in numerous industrial applications, from pharmaceuticals and agrochemicals to specialty chemicals and polymers. For procurement managers and R&D scientists, a thorough understanding of its properties, applications, and how to best source it is essential for operational efficiency and product innovation.

Properties of Oxalyl Chloride:
Oxalyl Chloride is a colorless to light yellow liquid with a molecular formula of C2Cl2O2. It is known for its high purity, often specified at 99.0% minimum assay. The compound is highly reactive, functioning as a potent acylating and chlorinating agent. It is soluble in common organic solvents like chloroform, toluene, and diethyl ether but decomposes violently in the presence of water and alcohol, necessitating careful handling and storage in cool, dry conditions.

Key Industrial Applications:
The utility of Oxalyl Chloride spans multiple sectors:
* Pharmaceuticals: Used as a critical intermediate in the synthesis of Active Pharmaceutical Ingredients (APIs) and various drug intermediates, including peptide coupling reagents.
* Agrochemicals: Serves as a precursor for herbicides, insecticides, and fungicides, contributing to effective crop protection solutions.
* Specialty Chemicals: Employed in organic synthesis for creating acyl chlorides, acid anhydrides, polyamide intermediates, and other fine chemical building blocks.
* Polymers and Materials: Involved in the synthesis of certain polymers and resins, and for modifying plastic properties via functionalized intermediates.
* Colorants: Used as a chlorinating agent in the synthesis of dyes and pigments.

Sourcing Oxalyl Chloride:
When looking to buy Oxalyl Chloride, identifying reliable manufacturers and suppliers is paramount. Companies often seek suppliers in China due to competitive pricing and production capacities. Key considerations when inquiring about Oxalyl Chloride include:

* Product Specifications: Ensure the product meets your required purity (e.g., ≥99.0%) and physical characteristics.
* Packaging: Standard packaging often includes 200kg drums. Confirm suitability for your handling and storage capabilities.
* Price and Availability: Obtain quotes for bulk purchases and inquire about lead times to ensure supply chain stability.
* Technical Support: Partner with suppliers who can offer technical data, safety information (SDS/TDS), and assistance with application queries.

By understanding the properties and applications of Oxalyl Chloride and by diligently selecting a trusted supplier, businesses can effectively leverage this essential chemical intermediate to drive innovation and meet their production goals.