Please note that pre-registration is required to buy Reference Standards.
If you're not able to "Select" an item from this list, it means the item is restricted and cannot be ordered online as we first need to ensure that DEA requirements are fulfilled. Please call USP Customer Service at 1-800-227-8772 or 301-881-0666 to order.
USP provides Material Data Safety Sheets (MSDS) for all Reference Standards and USP Certificates for some Reference Standards. Click on any product description to access the MSDS and the USP Certificate, if available.