We offer a comprehensive range of pharmaceutical, veterinary and medical research reference standards including metabolites and impurities, and their stable isotope labelled analogues. We make every effort to provide a complete set of reference standards for your research, analysis and screening needs. Many of these reference standards are not available from any other source. Our range includes:

• Active pharmaceutical ingredients
• Metabolites including conjugates such as glucuronides
• Degradation products and process impurities
• Genotoxic impurities
• Related substances for pharmacopeial updates
• Stable isotope-labelled analogues