United States Pharmacopeial Convention

USP is a scientific, nonprofit, standards-setting organization that advances public health through public standards and related programs that help ensure the quality, safety, and benefit of medicines and foods. USP establishes and publishes official, FDA-enforceable documentary standards for medicines in the USP–NF compendia and offers more than 2,900 Reference Standards for use in testing to help ensure identity, strength, quality, and purity. USP’s Reference Standard catalog includes highly characterized and collaboratively tested specimens for drug substances, impurities, residual solvents, biologics, excipients, Near-IR and dissolution calibrators.