1 viewer
Provider
PubChem (NIH / NCBI)
PubChem compounds keyed by InChIKey, with CID, formula, weight, InChI, SMILES, IUPAC name, synonyms and the 3D conformer (2D where PubChem has no 3D record) parsed into atoms and bonds. No key; paced under PubChem's 5 requests per second and 400 per minute.
- Kind
- Data source
- Supplies
- pubchem_compound
- Status
- active
- Endpoints
- 4
- Provider id
- pubchem
- Kind
- Data source
- Supplies
- pubchem_compound
- Pull mode
- live
- Caller-supplied records
- Accepted
- Default source
- live
- Sync sources
- payload, live
- Most records per sync
- 200
- Registry status
- active
- Registry updated
- Sun 4 Oct 2026 22:30:19 UTC
Endpoints
| Endpoint | Method | Address | What it returns |
|---|---|---|---|
| resolve | GET | https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/{name|inchikey}/{value}/cids/JSON | CIDs for a name or InChIKey; 404 when PubChem knows neither |
| properties | GET | https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/{cids}/property/{properties}/JSON | Computed properties for a comma-separated CID list |
| synonyms | GET | https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/{cids}/synonyms/JSON | Depositor synonyms, most used first |
| sdf | GET | https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/{cid}/SDF?record_type=3d | 3D conformer; 404 for a compound without one, then the 2D SDF without record_type |
Recent runs
No run of this provider is among the 200 most recent runs on this node.