Natural Ingredients and Products Directory is part of the Informa Markets Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

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.

Search Catalog and Buy Reference Standards

Explore our entire reference standards catalog–including current and previous lots, valid use dates, prices, and more. Updated daily. Click on a catalog number to buy a reference standard from our online store.

View this product at usp.org
Feedback