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. 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.
Easy access to NIST scientific and technical data. These data cover a broad range of substances and properties from many different scientific disciplines. Search by specific keywords, properties and substances across a collection* of NIST scientific and technical databases.