Displaying 9 results of Cefaclor Impurities Cefaclor is a second-generation cephalosporin antibiotic used to treat various bacterial infections. However, during the manufacturing process, impurities may be introduced, which can affect the purity, potency, and safety of the drug product. Some of the impurities associated with cefaclor include related substances, degradation products, and residual solvents. These impurities can be monitored and controlled through rigorous quality control measures to ensure the drug's safety and efficacy.