Structure Search
Draw a molecule in the editor, paste a SMILES string, or enter a compound/IUPAC name below to fetch its SMILES.
Draw
Or paste SMILES
Or type a name
Search settings
Min similarity:
60%
🧭 How to search by structure
- Draw itUse the editor above like a whiteboard — build the molecule bond by bond.
- Or paste a SMILES stringAlready have one from another tool? Drop it straight into the SMILES box — the drawing updates automatically.
- Or just type the nameType a compound or IUPAC name and click "Fetch SMILES" — we look it up via PubChem, then OPSIN as a fallback.
- Pick a search typeExact finds the identical molecule; Substructure finds anything containing it; Similarity finds close relatives (adjust the % slider to widen or narrow the match).
- Choose where to searchImpurities/Standards is our main reference-standard catalog; Fine-Chem is the multi-brand supplier price-list database.
Draw or enter a structure above to begin searching.