Search & Buy Reference Standards

USP currently offers more than 3,500 Reference Standards—highly characterized specimens of drug substances, excipients, food ingredients, impurities, degradation products, dietary supplements, compendial reagents and performance calibrators. USP Reference Standards are specified for use in conducting official USP–NF tests and assays. USP also provides Reference Standards specified in the Food Chemicals Codex as well as authentic substances—high-quality chemical samples—as a service to analytical, clinical, pharmaceutical and research laboratories.

USP has adjusted the pricing on a certain portion of our catalog effective November 1, 2020.

Download entire catalog as: EXCEL | PDF

Download the full foods list as: EXCEL | PDF

Download the full dietary supplements list as: EXCEL |  PDF

Download the full excipients list as: EXCEL |  PDF 

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Value beyond the vial

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The development process

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