With a strategic bookmark or two, existing workflows can be maintained. This new release emphasizes ease-of-access in information retrieval, but any change can be disruptive. Furthermore, PubChem homepage and search have been completely revamped, with many more features and improvements to search functionality to come in the near future. The updates include a new look and feel for most PubChem content pages such as compound summaries, substance and bioassay records, patent views, and more. Multiple updates to the PubChem web interface were released in March 2019.
The amount of data in PubChem is ever-growing, please visit the PubChem Statistics page to find out what the latest data counts are. Examples include: government agencies, chemical vendors, journal publishers, and more.
Where does the data in PubChem come from? PubChem records are contributed by hundreds of data sources. We collect information on chemical structures, identifiers, chemical and physical properties, biological activities, patents, health, safety, toxicity data, and many others. PubChem mostly contains small molecules, but also larger molecules such as nucleotides, carbohydrates, lipids, peptides, and chemically-modified macromolecules. Each month our website and programmatic services provide data to several million users worldwide. Since the launch in 2004, PubChem has become a key chemical information resource for scientists, students, and the general public. “Open” means that you can put your scientific data in PubChem and that others may use it. PubChem is an open chemistry database at the National Institutes of Health (NIH). For latest announcements, please visit the PubChem News page.
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