- Find PubChem compound IDs (CIDs) from a compound name or synonym.
- Find the CID of a compound from a SMILES string.
- Find the CID of a compound from an InChI string.
- Find the CID of a compound from an SDF or MOL file text.
- Find the CID of a compound from its InChIKey.
- Find the CID of a compound from a registry number such as a CAS number.
- Find compounds with a molecular formula.
- Suggest PubChem names that start with a text fragment.
- Get computed properties such as formula, weight, SMILES and InChIKey for one or more compounds.
- List every name PubChem has for a compound.
- Get the title and source-attributed text descriptions of a compound.
- List the registry identifiers PubChem holds for a compound, such as CAS, UNII and ChEBI.
- Get cross-references from a compound to other databases, such as PubMed, patents and genes.
- List compounds related to a compound by parent, stereo, isotope, connectivity or tautomer.
- Find compounds that carry a given external cross-reference, such as a registry number or PubMed ID.
- Find compounds by molecular weight, exact mass or monoisotopic mass, as an exact value or a range.
- Get the full structure record of one or more compounds: atoms, bonds, coordinates and properties.
- List the substance IDs (SIDs) that depositors submitted for a compound.
- Summarise the bioassay results recorded for a compound, one row per assay.
- List the 3D conformer IDs PubChem has for a compound.
- Get the date PubChem first created each compound record.
- Run a structure through PubChem's standardization and return the standardized record.
- Find compounds whose 2D structure is similar to a query structure.
- Find compounds that contain a query structure or SMARTS pattern.
- Find compounds that are contained in a query structure.
- Find compounds whose 3D shape and features are similar to a query structure.
- Find compounds that are identical to a query structure under a chosen definition of identity.
- Read a page of CIDs, SIDs or AIDs from a ListKey returned by an earlier search.
- Find PubChem substance IDs (SIDs) from a substance name or synonym.
- Find the substance IDs (SIDs) a source deposited under its own identifier.
- List every substance ID (SID) a source has deposited.
- Find substances that carry a given external cross-reference, such as a registry number or PubMed ID.
- Get the full depositor record for one or more substances.
- List the names a depositor gave one or more substances.
- Get the compound IDs (CIDs) that one or more substances were standardized into.
- List the bioassays (AIDs) that tested one or more substances.
- Get a table of every bioassay result for one or more substances.
- Get the classification hierarchies PubChem places a substance in.
- Get cross-references from one or more substances to other databases, such as registry numbers, PubMed and patents.
- Get the deposition, modification and hold dates of one or more substances.
- List the bioassays (AIDs) that tested a compound.
- Get a short summary of one or more bioassays: name, source, target and counts.
- Get the full description of a bioassay: protocol, readout, targets and result columns.
- List the protein and gene targets of one or more bioassays.
- List the compounds (CIDs) or substances (SIDs) tested in a bioassay, filtered by outcome.
- Get the result data of a bioassay, optionally for chosen substances only.
- Get the dose-response curves of chosen substances in a bioassay.
- Find the bioassays (AIDs) that tested a protein or gene target.
- Get a table of every substance result in a bioassay, one row per substance.
- Get the classification hierarchies PubChem places a bioassay in.
- Get the deposition, modification and hold dates of one or more bioassays.
- List the bioassays (AIDs) of one type, such as dose-response or confirmatory assays.
- List the bioassays (AIDs) deposited by one source.
- Find the bioassays (AIDs) that report a given activity column, such as EC50 or IC50.
- Get the summary of a gene: symbol, name, organism, description and synonyms.
- List the bioassays (AIDs) that tested a gene as a target.
- List the pathways that include a gene.
- List the external database identifiers PubChem holds for a gene.
- Get the summary of a protein: accession, name, organism and synonyms.
- List the bioassays (AIDs) that tested a protein as a target.
- List the pathways that include a protein.
- List the external database identifiers PubChem holds for a protein.
- Get the summary of a pathway: source, name, organism and description.
- List the compounds, genes or proteins that belong to a pathway.
- Get the summary of an organism: scientific name, common name, rank, lineage and synonyms.
- List the bioassays (AIDs) that involve an organism.
- List the external database identifiers PubChem holds for an organism.
- Get the summary of a cell line: accession, name, sex, category, source tissue and organism.
- List the bioassays (AIDs) that used a cell line.
- List the external database identifiers PubChem holds for a cell line.
- List every source that has deposited substances or bioassays into PubChem.
- Get the table of depositing sources with their counts, category, organization and contact details.
- Get one computed 3D conformer of a compound, with atom coordinates.
- List every PUG View annotation heading with the record type it applies to.
- List the sources that provide annotations under one PUG View heading.
- List the PUG View headings that one source provides annotations for.
- List the PubChem records classified under one node of a classification hierarchy.
- Get the periodic table of the elements with PubChem's properties for each element.
- List the external identifier types PubChem can look up in one domain.
- List the annotation headings that a compound has data for.
- Get the annotations PubChem holds for a compound, such as safety, toxicity, pharmacology and physical properties, with sources.
- Get PubMed search links for the literature about a compound, grouped by subheading.
- List the protein structures from the PDB and MMDB that contain a compound.
- Get the PubChem record of a patent: abstract, dates, inventors, assignee and linked chemicals, genes and proteins.
- Get the annotations PubChem holds for a substance, gene, protein, pathway, taxonomy, cell line, bioassay or element.
- List the annotation headings that a substance has data for.
- Get every record's annotation values for one heading, with the source of each.
- List the sources that deposited data for a compound, grouped by category.
- List the external web pages that link out from a compound, substance or bioassay record.
- Get a QR code, as SVG text, that links to a compound's PubChem page.
- Get the image of a biologic, such as a peptide or protein sequence, as SVG text.
- Get the RDF triples PubChem holds for one resource, such as a compound, substance, bioassay or gene.
- Query PubChem RDF with a graph name and optional filters, for example to find compounds by synonym.
- Get literature co-occurrence scores between a chemical, gene or disease and other entities.
- Look up a literature reference in PubChem RDF by PubMed ID or DOI.
- Search PubChem Compound, Substance or BioAssay with an Entrez query and get the matching IDs.
- Get the Entrez document summaries for PubChem Compound, Substance or BioAssay IDs.
- Find the records in another Entrez database that are linked to PubChem Compound, Substance or BioAssay IDs.
- Get the searchable fields, links and record count of a PubChem Entrez database.
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