For any chemical intermediate, especially one as critical to complex synthesis as 2,3,4,6-Tetra-O-acetyl-α-D-galactopyranosyl Bromide (CAS: 3068-32-4), understanding its precise specifications and purity is paramount. Researchers, formulators, and procurement specialists must have a clear grasp of these details to ensure successful outcomes in their applications, particularly in demanding fields like glycochemistry and pharmaceutical manufacturing. This article aims to provide a clear overview of what to look for when sourcing this valuable compound.

Key Specifications for Acetobromo-α-D-galactose

When evaluating suppliers and products, several key specifications should be considered:

• Purity: This is arguably the most critical specification. For 2,3,4,6-Tetra-O-acetyl-α-D-galactopyranosyl Bromide, purity levels are typically indicated by methods like HPLC or argentometric titration. A purity of ≥ 97% is generally considered standard for high-quality material, with some suppliers offering ≥ 98% or even higher. Higher purity minimizes unwanted side reactions and ensures the integrity of the synthesized products.
• Appearance: The compound is commonly described as a White Crystalline solid. Variations like 'off-white' might be acceptable, but significant color deviations could indicate impurities or degradation.
• Melting Point (MP): The melting point range provides a good indication of purity. For this compound, a typical range is 83-85°C. A wider or significantly different melting point can suggest the presence of impurities.
• Molecular Formula and Weight: These fundamental properties are C14H19BrO9 and approximately 411.2 g/mol, respectively. They are essential for stoichiometric calculations in synthesis.
• Solubility: Understanding its solubility (e.g., sparingly soluble in water, soluble in chloroform, ethyl acetate) is important for reaction setup and purification procedures.
• Stability and Storage: Due to its reactive nature, it is often sensitive to temperature and moisture. It is typically stored at -20°C, often stabilized with agents like 2% CaCO3, to maintain its integrity. Procurement managers should confirm the recommended storage conditions with their supplier.

Why These Specifications Matter to You

For the scientist using this compound, high purity means cleaner reactions and higher yields of desired products. For product formulators, consistent specifications ensure batch-to-batch reproducibility. For procurement managers, understanding these metrics allows for better supplier comparison and negotiation. When you buy 2,3,4,6-Tetra-O-acetyl-α-D-galactopyranosyl Bromide, always ask for the Certificate of Analysis (CoA) to verify these critical parameters. Partnering with a reliable manufacturer known for its adherence to quality standards is crucial for ensuring you receive material that meets your exact needs.