BOC Sciences provides a wide range of research chemicals and biochemicals including inhibitors, building blocks, carbohydrates, nucleosides, nucleotides, GMP Products, impurities and metabolites, APIs, natural compounds, ADCs, stem cell molecule and chiral compounds. Rifaximin EP Impurity H is an intermediate of Rifaximin. Rifaximin is a semi-synthetic, nonsystemic antibiotic derived from rifamycin SV with antibacterial activity. It also acts as a pregnane X receptor (PXR) agonist. It is approved for the treatment of traveler's diarrhea, irritable bowel syndrome, and hepatic encephalopathy.