For research and development scientists, a thorough understanding of the specifications of chemical intermediates is fundamental to successful experimental design and execution. 2-Bromo-3-methylpyridine (CAS 3430-17-9) is a prime example of such a critical compound, widely utilized for its versatile reactivity. Knowing its precise properties ensures that it can be effectively employed in synthesis, whether for novel pharmaceuticals, advanced agrochemicals, or specialized materials.

At the forefront of its specifications is its purity. Researchers typically require 2-Bromo-3-methylpyridine to be of high purity, often exceeding 95% or even 99% as determined by Gas Chromatography (GC). This high purity is essential to minimize unwanted side reactions and to ensure the reproducibility of experimental results. When sourcing this material, it is advisable to obtain a Certificate of Analysis (CoA) that details the purity and identifies any minor impurities present. For those looking to buy, understanding these purity metrics directly impacts the reliability of your research outcomes.

Physically, 2-Bromo-3-methylpyridine is described as a liquid, typically appearing as colorless to pale yellow. Its density is usually around 1.54-1.55 g/mL at 25°C, and its refractive index is approximately 1.565-1.57. These physical properties are important for handling, formulation, and analytical characterization. For example, its boiling point is around 218-219°C, which is a key parameter for distillation and purification processes.

Storage conditions are also a critical specification. Many suppliers recommend storing 2-Bromo-3-methylpyridine in a cool, dry place, often under an inert atmosphere and at room temperature or refrigerated (0-8°C) to maintain its stability and prevent degradation. Proper storage is crucial for R&D labs to ensure the compound remains viable for use over extended periods. When you are seeking to purchase this chemical, inquire about recommended storage and handling procedures from the manufacturer.

The Global Harmonized System (GHS) classification also provides important safety information, often including hazard statements like H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Precautionary statements guide safe handling practices. Researchers must always consult the Safety Data Sheet (SDS) provided by the supplier. For those actively involved in chemical synthesis, buying 2-Bromo-3-methylpyridine from reputable suppliers who provide comprehensive specification data is a non-negotiable aspect of responsible R&D practice.