Development and Standardization of a Reference Standard for the Propranolol Impurity (RS)-3-(Naphthalen-1-yloxy)Propane-1,2-diol (Impurity A) for Quality Control of Pharmaceuticals
摘要
Cardiovascular diseases remain a major healthcare challenge. â-Blockers such as propranolol play a critical role in their treatment. The quality and safety of pharmaceuticals directly depend on impurity control, which necessitates the use of reference standards. This work presents an approach to the development and standardization of a reference standard for the propranolol impurity (RS)-3-(naphthalen-1-yloxy)propane-1,2-diol (Impurity A). The methods of synthesis, purification, and analysis are described. Standardization pathways to ensure compliance with regulatory requirements are proposed. Material standardization for authenticity was performed using IR spectroscopy and mass spectrometry. The mass fraction of the main substance in the sample determined by the mass balance method was 99.124%.