The Substructure match displays substances that contain the structure query embedded within the chemical structure. Unless specified otherwise, the substructure must appear as drawn, and any substituent is allowed at any open atom position.
You can apply substructure query features to broaden or narrow your query:
Specifying variable atoms to represent a class of substituents, such as halogens
Specifying Derwent superatoms for precise Markush structure searches
Specifying R-groups to specify a list of allowed substituents
Applying unspecified bond type to allow any bond type
Specifying repeating groups to allow ring or chain size to vary
Specifying variable attachment points (VAPs) to allow position of a ring substituent to vary
Locking atoms to prevent substitution at an atom site
Locking rings to prevent ring fusion or formation
Assigning Non-Hydrogen Attachments to allow for or force substitution at an atom site
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Drawing and Editing Structures