Methionine

Methionine Impurities & Reference Standards

Methionine is a widely used active pharmaceutical ingredient (API) that plays a central role in modern drug formulation and manufacturing. Methionine is registered under CAS Number 63-68-3. The compound carries the molecular formula C5H11NO2S, corresponding to a molecular weight of 149.2 g/mol. Analytical laboratories rely on Methionine and its associated impurity standards for method development, quality control testing, and pharmacopoeial compliance (ICH, USP, BP, EP). We supply certified Methionine reference standards and impurity markers with complete documentation, including a Certificate of Analysis (CoA), HPLC chromatograms, and spectroscopic data, for pharmaceutical research, manufacturing, and regulatory use.