Drug Information Portal has been retired by the National Library of Medicine (NLM) as of December 2022. NLM is consolidating all of its chemical information into a single database, PubChem. All the information from Drug Information Portal has been loaded into PubChem. Please use PubChem as a replacement for Drug Information Portal.
For latest announcements, please visit the PubChem News page.
PubChem is an open chemistry database at the National Institutes of Health (NIH). “Open” means that you can put your scientific data in PubChem and that others may use it. Since the launch in 2004, PubChem has become a key chemical information resource for scientists, students, and the general public. Each month our website and programmatic services provide data to several million users worldwide.
PubChem mostly contains small molecules, but also larger molecules such as nucleotides, carbohydrates, lipids, peptides, and chemically-modified macromolecules. We collect information on chemical structures, identifiers, chemical and physical properties, biological activities, patents, health, safety, toxicity data, and many others.
Where does the data in PubChem come from? PubChem records are contributed by hundreds of data sources. Examples include: government agencies, chemical vendors, journal publishers, and more.
The amount of data in PubChem is ever-growing, please visit the PubChem Statistics page to find out what the latest data counts are.
Highly recommended as a portal for a broad scope of drug-related information from reputable US government sources, arranged by audience (health professionals, researchers, the general public, librarians, and students/educators).