For Research and Development scientists in the pharmaceutical and chemical industries, the selection of raw materials is a critical step that directly impacts the success of experiments and product development. Diphenhydramine Hydrochloride (CAS 147-24-0) is a compound that often features in research due to its well-documented antihistaminic and anticholinergic activities. Understanding what to look for when you need to buy this chemical is essential for efficient and accurate research.

The primary factor for R&D scientists when sourcing Diphenhydramine Hydrochloride is purity. High purity levels, often specified as ≥98% or even higher, are crucial to avoid confounding results. Suppliers should be able to provide a Certificate of Analysis (CoA) that details impurity profiles, physical characteristics like its white crystalline powder appearance, and other relevant specifications. This documentation is vital for experimental integrity.

Beyond purity, scientists often require specific physical and chemical properties. For instance, knowing the solubility in various solvents, such as water (1000 g/L) or DMSO, is important for preparing solutions for assays or experiments. Understanding its molecular formula (C17H21NO.HCl) and molecular weight (291.85) also aids in precise stoichiometric calculations.

When considering purchasing Diphenhydramine Hydrochloride, engaging with suppliers who specialize in fine chemicals and pharmaceutical intermediates is recommended. Manufacturers from China are increasingly recognized for their ability to produce high-quality compounds at competitive prices. Investigating potential suppliers' track record, customer reviews, and their ability to provide consistent supply for pilot studies or larger research projects is a wise approach.

Ultimately, for R&D scientists, the goal is to obtain Diphenhydramine Hydrochloride that meets rigorous scientific standards. By prioritizing purity, reliable data, and trustworthy suppliers, you can ensure your research and development efforts are built on a solid chemical foundation. Consider requesting samples to verify performance before committing to larger purchases.