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  1. pubchem.ncbi.nlm.nih.govPubChem

    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.

  2. pubchem.ncbi.nlm.nih.gov › search › searchPubChem Structure Search

    PubChem Structure Search. Search By: Name/. Text. Identity/. Similarity.

  3. pubchem.ncbi.nlm.nih.gov › docs › compoundsCompounds - PubChem

    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.

  4. pubchem.ncbi.nlm.nih.gov › docs › structure-searchStructure Search - PubChem

    PubChem Structure Search allows the PubChem Compound Database to be queried by chemical structure or chemical structure pattern.

  5. en.wikipedia.org › wiki › PubChemPubChem - Wikipedia

    PubChem is a database of chemical molecules and their activities against biological assays. The system is maintained by the National Center for Biotechnology Information (NCBI), a component of the National Library of Medicine, which is part of the United States National Institutes of Health (NIH).

  6. pubchem.ncbi.nlm.nih.gov › docs › downloadsDownloads - PubChem

    Learn about various options available for downloading PubChem data.

  7. Browse PubChem data sources by country, type of data provided or category such as chemical vendors/suppliers, government organizations, journal publishers, and more.

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