USP Reference Standards


Highly characterized specimens used to demonstrate identity strength, quality, and purity for drugs, dietary supplements, food ingredients, and other products.


Features & Benefits

Designed for use in identification tests, limit tests for impurities or related compounds, assays for drug substances and formulations, system suitability tests, chromatographic and spectrophotometric procedures, and performance verification tests (e.g., particle count, melting point, and dissolution) as calibrators, blanks, or controls.

Specified for use in conducting official tests and assays found in the United States Pharmacopeia–National Formulary, whose standards and procedures are enforceable by the U.S. Food and Drug Administration for drugs marketed in or imported to the United States.

Established through collaborative testing in multiple laboratories.

Also available: Reference Standards specifi ed in the Food Chemicals Codex as well as authentic substances—high-quality chemical samples—as a service to analytical, clinical, pharmaceutical, and research laboratories.

A time and cost-saving alternative to developing in-house standards!