Testing, identifying, quantifying, and controlling pharmaceutical impurities are crucial for ensuring the purity, safety, and quality of both drug substances and finished drug products.Pharmaceutical impurities originate from a variety too. This includes starting materials and their contaminants, reagents, catalysts, solvents, intermediates, excipients, leachables, and degradation products. These contaminants may be organic, related either to the process or the drug, or they could be inorganic o......