For procurement managers and R&D scientists in the chemical and pharmaceutical industries, securing a consistent and high-quality supply of essential intermediates is paramount. 1-Bromo-3-iodobenzene, identified by its CAS number 591-18-4, stands out as a critical building block in numerous organic synthesis processes. This article serves as a comprehensive guide for buyers looking to purchase this compound, focusing on sourcing from reputable Chinese manufacturers and suppliers, understanding its applications, and navigating the procurement process.

Understanding 1-Bromo-3-iodobenzene (CAS 591-18-4)

1-Bromo-3-iodobenzene is a dihalogenated aromatic compound with the molecular formula C6H4BrI. It typically appears as a clear, colorless to light yellow liquid. Its unique structure, featuring both bromine and iodine substituents on a benzene ring at the meta positions, makes it highly versatile in synthetic organic chemistry. This compound is often employed in cross-coupling reactions, such as Suzuki, Sonogashira, and Heck reactions, allowing for the formation of carbon-carbon bonds and the construction of complex molecular architectures. Its reactivity makes it invaluable for researchers and manufacturers working on advanced materials, pharmaceuticals, and agrochemicals.

Key Applications Driving Demand

The demand for 1-Bromo-3-iodobenzene is primarily driven by its utility as an intermediate:

• Pharmaceutical Synthesis: It serves as a precursor for synthesizing active pharmaceutical ingredients (APIs) and advanced pharmaceutical intermediates, contributing to drug discovery and development.
• Material Science: Its structure lends itself to the creation of novel polymers, organic electronic materials (like OLEDs and OPVs), and functional materials with tailored properties.
• Agrochemicals: While less common, it can be a building block in the synthesis of certain specialized agrochemical compounds.
• Research and Development: In academic and industrial research labs, it is a staple reagent for exploring new reaction methodologies and synthesizing complex organic molecules.

Sourcing from China: Manufacturer and Supplier Landscape

China has emerged as a global hub for fine chemical manufacturing, offering a vast array of suppliers for compounds like 1-Bromo-3-iodobenzene. When looking to buy this chemical, it is crucial to partner with reliable manufacturers and distributors who can guarantee product purity, stability, and consistent supply. Key considerations when selecting a supplier include:

• Purity Levels: Ensure the supplier offers the required purity, typically 98% or 99% minimum, often verified by GC analysis.
• Production Capacity: For bulk requirements, assess the manufacturer's production capacity and ability to scale up.
• Certifications and Quality Control: Look for ISO certifications and robust quality control processes.
• Logistics and Export Capabilities: A supplier with strong export experience and efficient logistics ensures timely delivery to your location.
• Competitive Pricing: Compare quotes from multiple suppliers to secure the best possible price for your procurement needs.

Navigating the Purchase Process

To purchase 1-Bromo-3-iodobenzene (CAS 591-18-4), prospective buyers should typically:

1. Identify Potential Suppliers: Utilize online chemical marketplaces, industry directories, and direct manufacturer websites to find potential partners.
2. Request Quotes (RFQ): Clearly state your required quantity, purity specifications, and delivery timeline when requesting quotes.
3. Evaluate Offers: Compare not only price but also lead times, payment terms, and the supplier's reputation.
4. Order Samples: Before committing to a large order, it is often advisable to purchase small quantities for in-house quality assessment.
5. Confirm Shipping and Documentation: Ensure all necessary shipping documents, safety data sheets (SDS), and certificates of analysis (CoA) are provided.

For procurement managers seeking a reliable source, engaging with established Chinese chemical manufacturers and suppliers is a strategic move. They often offer competitive pricing and a deep understanding of chemical production, making them ideal partners for sourcing critical intermediates like 1-Bromo-3-iodobenzene. By focusing on quality, reliability, and cost-effectiveness, you can ensure a stable supply for your ongoing projects and manufacturing needs.