Rifamycin is an antibiotic used to treat bacterial infections. However, during the production process or storage, impurities may form, which can affect the purity and potency of the drug. Rifamycin impurities can include degradation products, residual solvents, and other impurities. These impurities can impact the quality, safety, and efficacy of the drug, and must be closely monitored and controlled during the manufacturing process.