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Additionally the user can copy-and-paste a molecule into the appropriate field and click the [submit] link. The structure will be submitted to the server and the contents of the sketcher and the additional information panes will be updated. Two other methods to introduce molecule structure are uploading a molecule from an SDF file and identifying a molecule by name. If the molecule name is not present in OCHEM, the PubChem search will be performed to retrieve molecule structure.