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Chemical Name

Searches for structures containing a particular small molecule (e.g. biotin), using the small molecule names found in the Chemical Component Dictionary (formerly the HET Group Dictionary).

The chemical name search can be used to find a piece of text in the name or synonym of a chemical component as:

The polymeric type option can be used to specify the context where the chemical component is used:


  1. Equals: biotin, PolymericType:free (finds an exact match for the word biotin in names or synonyms of free ligands)
  2. Contains: monophosphate (finds chemical names that contain the string monophosphate either in free ligands or modified polymeric residues)