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Chemical Structure Search
Draw or paste a chemical structure to find similar compounds in our database
Molecular Search Available
Database contains: 267991 indexed compounds
Last updated: 2026-04-26 01:36:38.660512+00:00
Draw Chemical Structure
Loading molecule editor...
Please wait while the structure drawing tool loads.
Please wait while the structure drawing tool loads.
Search Types Explained
- Substructure: Find all compounds that contain your drawn structure as a part
- Similarity: Find compounds with similar molecular fingerprints
- Exact: Find compounds with identical molecular structure
How to Use
- Draw your chemical structure in the editor above
- Choose the type of search you want to perform
- Adjust similarity threshold if using similarity search
- Click "Search Structure" to find matching compounds
Editor Controls:
- Left click: Add/select atoms
- Right click: Context menu
- Drag: Draw bonds
- Delete key: Remove selected items
Alternative Input
You can also search using SMILES strings directly:
SMILES Text Search