For any B2B buyer in the chemical and pharmaceutical sectors, understanding the precise specifications and quality control measures of a product is non-negotiable. This is especially true for essential intermediates like 2-Bromo-5-methylbenzaldehyde (CAS:90221-55-9), which serves as a critical building block in numerous synthetic pathways. Ensuring you receive a product that meets rigorous standards is vital for the success of your research, development, and manufacturing processes.

Essential Specifications of 2-Bromo-5-methylbenzaldehyde

When you are ready to purchase 2-Bromo-5-methylbenzaldehyde, here are the key specifications to verify with your supplier:

  • CAS Number: 90221-55-9. This unique identifier ensures you are sourcing the correct chemical entity.
  • Molecular Formula: C8H7BrO. This confirms the atomic composition of the compound.
  • Molecular Weight: Approximately 199.04 g/mol. This is important for stoichiometric calculations in reactions.
  • Appearance: Typically described as a yellow powder. Visual consistency can be an initial indicator of quality.
  • Purity: Most suppliers offer grades ranging from 95% to 98% or higher. For sensitive applications, particularly in pharmaceuticals, a purity of 98% or above is usually preferred. Always confirm the assay method used by the manufacturer.
  • Melting Point: Around 43°C. This physical property is a common benchmark for purity verification.
  • Solubility: Often soluble in methanol and other organic solvents, which is important for reaction setup.

Quality Assurance from Manufacturers

Reputable manufacturers and suppliers of 2-Bromo-5-methylbenzaldehyde implement stringent quality assurance (QA) protocols. These typically include:

  • Raw Material Testing: Ensuring the quality of starting materials used in the synthesis process.
  • In-Process Controls: Monitoring key parameters during synthesis to maintain consistency.
  • Final Product Analysis: Comprehensive testing of the finished product using techniques like Gas Chromatography (GC), High-Performance Liquid Chromatography (HPLC), Nuclear Magnetic Resonance (NMR) spectroscopy, and Mass Spectrometry (MS) to confirm identity, purity, and the absence of critical impurities.
  • Certificate of Analysis (CoA): A mandatory document provided with each shipment, detailing the tested specifications and results for that specific batch. Buyers should always review the CoA to confirm it meets their requirements before accepting delivery.

What to Ask Your Supplier

When you are looking to buy 2-Bromo-5-methylbenzaldehyde, don't hesitate to ask your potential supplier about:

  • Their manufacturing processes and quality control systems.
  • The availability of batch-specific CoAs.
  • Their capabilities for custom synthesis or offering different purity grades if needed.
  • Their ability to provide free samples for initial evaluation.
  • Their lead times and packaging options for bulk orders.

By prioritizing these specifications and quality assurance measures, buyers can ensure they are obtaining high-quality 2-Bromo-5-methylbenzaldehyde from trusted manufacturers, facilitating successful outcomes in their chemical and pharmaceutical endeavors.