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: NC(=O)OCC1N=C(N)N2C3(C1NC(=N3)N)C(O)(O)CC2

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.