Displaying 1 results of Sulfathiazole Impurities Sulfathiazole is an antibiotic used to treat bacterial infections. However, during the manufacturing process, impurities can be introduced which may affect the drug's efficacy and safety. These impurities can include residual solvents, degradation products, and other related substances. The identification and quantification of these impurities is critical to ensuring the quality and safety of the drug product.