Rifaximin

Rifaximin Impurities & Reference Standards

Rifaximin is recognized as an active pharmaceutical ingredient (API) that supports formulation development, process validation, and quality assurance in drug manufacturing. Rifaximin is registered under CAS Number 80621-81-4. High-purity Rifaximin and its related substances / process impurities are essential for analytical method development, method validation, quality control, and regulatory submissions under ICH, USP, BP, and EP guidelines. Our Rifaximin reference standards are provided with full documentation — Certificate of Analysis (CoA), HPLC chromatographic data, and spectral characterization — to support pharmaceutical R&D and GMP manufacturing.