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Search and explore chemical information in the world's largest free chemistry database. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature citations and more.
- Periodic Table
PubChem is providing this periodic table page in order to...
- PubChem Upload
PubChem Upload tool enables users to submit data to the...
- Data Sources
Browse PubChem data sources by country, type of data...
- Classification Browser
Browse PubChem data using a classification of interest, or...
- News
Recent news and announcements from PubChem.
- NIH National Library of Medicine NCBI
NCBI is a hub for biotechnology information, offering...
- PubChem
Learn about PubChem chemical database, browse or search the...
- Docs
Its purpose is primarily to drive the PubChem database...
- Periodic Table
PubChem Structure Search allows the PubChem Compound Database to be queried by chemical structure or chemical structure pattern.
PubChem is a free online resource maintained by the NCBI that contains millions of chemical structures, substance descriptions, and biological activity data. Users can search PubChem by various properties, such as chemical name, formula, molecular weight, XLogP, and bioactivity, and access links to other NCBI databases.
PubChem Compound records are derived summaries that give users access to a rich set of related content. Compound records contain unique chemical structures extracted from contributed Substance records through standardization.
An overview of search and other analysis capabilities in PubChem.
Learn about various options available for downloading PubChem data.
The PubChem homepage (https://pubchem.ncbi.nlm.nih.gov) provides a search interface that allow users to perform any term/keyword/identifier search against all three major databases of PubChem 1-3: Compound, Substance, BioAssay (see Section 3 of Module 4 for data organization in PubChem).