Filter Reactions by Structure Match

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Note: Structure Match only appears if the search query includes a structure drawing and the reactants/product generate an ICC code.



As Drawn to display the 21 reactions that match the structure exactly as drawn.

Substructure to display the 1.1 million reactions that contain the structure embedded as a substructure.

Similarity to display a filter where you may select the level of similarity between your query's reaction center and reactions in the results. Note: This filter is only available for searching single-step reactions.

For example, searching the below reaction produced 310 similar results.


Broad: Reaction centers must match.


Medium: Reaction centers plus the adjacent atoms and bonds must match.


Narrow: Reaction centers plus the extended atoms and bonds (those alpha and beta to the reaction centers) must match.