From August 18th 2026, GtoPdb will require users to register to use the website. Please see our blog post for more information.

Chemical structure search

Input SMILES: C1=C(C=CC(=C1)Cl)C(=O)CN2C(=O)C(=C(C=N2)Cl)Cl

Using Ketcher 3.12.0 under Apache License 2.0

Choose type of search to perform: 


Limit results by chemical class: 


To return all relevant hits please ensure that your input structure does not include chiral specification.