Hexoprenaline impurities refer to any unwanted or undesirable substances that are present in a sample of hexoprenaline. These impurities can arise from various sources, such as incomplete synthesis, degradation during storage, or contamination during handling or manufacturing. The presence of impurities can affect the quality, safety, and efficacy of hexoprenaline, and therefore, it is crucial to identify and minimize their levels. Various analytical techniques, such as HPLC, GC, and NMR, are
