FDA's Global Substance Registration System
UNII availability does not imply any regulatory review or approval. Synonyms and mappings are based on the best public information available at the time of publication.
UNII Codes Lookup | National Drug Codes List
Aug 18, 2025 · A Unique Ingredient Identifier (UNII) is a 10-character alphanumeric code assigned by the FDA to uniquely identify substances in drugs, biologics, and medical devices.
Unique Ingredient Identifier - Wikipedia
The Unique Ingredient Identifier (UNII) is an alphanumeric identifier linked to a substance's molecular structure or descriptive information and is generated by the Global Substance …
About Unii
Unii is a global educational platform that empowers families to achieve their full potential by providing personalised and evidence-based education on family wellbeing.
Not all inactive ingredients will receive a UNII. In order to receive a UNII, an ingredient must be a ‘substance’, which is defined as “Any physical material that has a discrete existence, …
FDA's Global Substance Registration System
Information about FDA's Global Substance Registration System and the Unique Ingredient Identifier (UNII)
openFDA - Food and Drug Administration
About UNII Beginning in 2006, FDA created a Substance Registration System and unique ingredient identifiers because no other code system met the agency’s regulatory needs. UNIIs …
Unique Ingredient Identifier - Wikiwand
The Unique Ingredient Identifier (UNII) is an alphanumeric identifier linked to a substance's molecular structure or descriptive information and is generated by the Global Substance …
UNII - Archive - Food and Drug Administration
Aug 18, 2025 · Substance Registration SystemAbout, Contact Us, Copyright, Privacy, Accessibility U.S. Food and Drug Administration, 10903 New Hampshire Ave, Silver Spring, …
UNII - Learn to search - Food and Drug Administration
Here you will learn how to use the UNII search bar on this website. If you are unsure of the UNII code that you are looking for, we provide a wildcard search to help find what you are looking...