ChEMBL Scraper: Drug-Like Molecules & Properties
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ChEMBL Scraper: Drug-Like Molecules & Properties
Search drug-like molecules and their properties via the EBI ChEMBL API: molecular weight, logP, development phase and approval year. No login, no proxy, no browser.
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Pay per usage
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Naimur Hasan
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20 days ago
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ChEMBL Scraper
Searches drug-like molecules and their computed properties through the EBI ChEMBL API. No login, no proxy, no browser.
Input
| Field | Type | Notes |
|---|---|---|
nameContains | string | Filter on preferred name, e.g. statin. Default statin. |
approvedOnly | boolean | Only molecules that reached approval (max phase 4). Default false. |
maxItems | integer | Cap on molecules. Default 50. |
Output
One row per molecule: chemblId, prefName, moleculeType, maxPhase,
phaseLabel, firstApproval, molecularWeight, alogp, hbd, hba,
psa, rotatableBonds, smiles, chemblUrl.
Notes
- Every numeric property is a string upstream (
"341.75"), so all are converted — otherwise molecular weight sorts alphabetically. max_phasenull is not the same as phase 0. Null means no recorded development stage; 0 means explicitly preclinical.phaseLabelkeeps them distinct rather than collapsing both to "Preclinical".- Most ChEMBL molecules have no
pref_name— the database is dominated by research compounds identified only by ChEMBL ID. A null name is normal, not a mapping failure. alogp,hbd,hbaandpsaare the Lipinski-style descriptors used to judge drug-likeness.