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1. pubchem.ncbi.nlm.nih.govPubChem

   pubchem.ncbi.nlm.nih.gov

   PubChem is the world's largest collection of freely accessible chemical information. 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.ncbi.nlm.nih.gov › search › search

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

3. pubchem.ncbi.nlm.nih.gov › periodic-tablePeriodic Table of Elements - PubChem

   pubchem.ncbi.nlm.nih.gov › periodic-table

   Chemical Element Data in PubChem. PubChem is providing this periodic table page in order to help navigate abundant chemical element data available in PubChem. When exploring the table or list views on this page, please note the links to dedicated pages for each element.

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

   pubchem.ncbi.nlm.nih.gov › docs › compounds

   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.

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

   pubchem.ncbi.nlm.nih.gov › docs › downloads

   Please enable Javascript in order to use PubChem website. Learn about various options available for downloading PubChem data.

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

   en.wikipedia.org › wiki › PubChem

   • Cached

   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).

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

   pubchem.ncbi.nlm.nih.gov › docs › structure-search

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

8. pubchem.ncbi.nlm.nih.gov › sourcesData Sources - PubChem

   pubchem.ncbi.nlm.nih.gov › sources

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

9. pubchem.ncbi.nlm.nih.gov › docs › aboutAbout - PubChem

   pubchem.ncbi.nlm.nih.gov › docs › about

   Learn about PubChem chemical database, browse or search the documentation and find PubChem staff contact information.

10. pubchem.ncbi.nlm.nih.gov › docsDocs - PubChem

    pubchem.ncbi.nlm.nih.gov › docs

    Entrez Advanced Search. Entrez is a primary text search and retrieval system used for the three primary databases in PubChem and other major NCBI databases, including PubMed, Nucleotide and Protein Sequences, Protein Structures, Genome, Taxonomy, BioSystems, Gene Expression Omnibus (GEO) and many others.