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: NCCCCC1NC(=O)C(NC(=O)C(CC(C)C)NC(=O)C(Cc2ccccc2)NC(=O)C(N)CSSCC(NC(=O)C(NC(=O)C(NC(=O)C(NC(=O)CNC(=O)C(NC1=O)CCCN=C(N)N)CCCN=C(N)N)CCC(=O)N)C(C)C)C(=O)O)C(O)C

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.