PubChem
pubchem.ncbi.nlm.nih.gov
A free chemistry database from the US National Institutes of Health, with structures, properties, safety data and biological activity for millions of compounds.
Why it is useful
Search by name, formula or structure to get a compound's properties and links to related literature in one place. It is a standard reference for students and researchers, and the data is openly available.
More in Research & Data
Other research & data you might not have heard of.
- Hugging FaceThe central repository for open-source AI models, datasets, and Spaces demos — hosting over 1 million models and 150,000 datasets with free download and one-line API access.
- FRED Economic DataFederal Reserve Bank of St. Louis database of over 800,000 economic time series from hundreds of sources.
- KaggleCommunity platform for datasets, machine learning competitions, and collaborative notebooks.
- OpenCorporatesThe largest open database of companies worldwide, aggregating corporate registry data from over 140 jurisdictions into one searchable index.
- LMSYS Chatbot ArenaA live human preference leaderboard where anonymous models compete head-to-head in blind evaluations, producing the most credible ranking of conversational AI quality available.
- IncitefulAn academic literature mapping tool that builds a citation network graph from a seed paper and uses network analysis to surface the most important connected papers you might otherwise never find.