Unsaturation

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The Unsaturation property specifies whether a multiple bond is attached to the selected atoms. The unsaturation options are described in the following table.

Option	Search Result
Unspecified	Default. Finds compounds regardless of whether a multiple bond is attached to the selected atoms.
Must be absent	Finds compounds that do not have a multiple bond attached to the selected atoms.
Must be present	Finds compounds that have at least one multiple bond (double, triple or aromatic) attached to the selected atoms.