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.
This provider-level handoff preserves only its public ID. No tool or business task is guessed; choose a current tool during rediscovery before setup can be treated as complete.
Find PubChem Assay Identifiers (AIDs) that measure a specific activity type (e.g., EC50).; Retrieve list of Assay IDs (AIDs) that measure a specific activity type (e.g., EC50)
Fetch the description section of a PubChem BioAssay record.
Fetch a simplified summary of a PubChem BioAssay including target and activity counts.
Returns assay identifiers (AIDs) by type or source.
Fetch concise BioAssay data including activity outcomes and concentrations.; Retrieve concise BioAssay data including active concentration readout and additional metadata
Fetch BioAssay data rows (default operation for assays).; Retrieve full BioAssay data by Assay ID (AID) in specified format
Fetch a specific pre-computed property for a PubChem compound.
Fetch the complete PubChem compound record for a given CID in various formats.
Get related compound identifiers (CIDs) from a given CID with options like parent, component, same_stereo, etc.
Find compounds similar in 3D structure to a reference compound specified by CID.
Get PubChem Compound Identifiers (CIDs) matching a given chemical name.
Fetch one or more chemical properties for a compound by CID, name, SMILES, InChIKey, or other identifiers.
Retrieve summary information for proteins including ProteinAccession, Name, Taxonomy, and Synonyms
Manages PubChem Power User Gateway (PUG) tasks via HTTP POST with XML payload. Supports submitting new tasks (download, query, standardization, request management), polling task status using a request ID, and canceling active tasks.
Submit a Power User Gateway (PUG) request to PubChem for compound data retrieval, structure search, or download operations.
Retrieve biologic image associated with a compound using internal identifier.
Retrieve listing of all NCBI LinkOut records for a substance, compound, or assay.
Generate QR code linking to LCSS page for a compound (short or long format).
Retrieve complete structured data for a PubChem record.
Fetch the complete substance record using SID or source ID in formats like SDF, XML, JSON, PNG.
