Ring Bond Count

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The Ring Bond Count specifies the number of bonds attached to an atom that are part of rings of any size. For simple cases, this also specifies the maximum number of rings in which an atom can reside. The ring bond count options are described in the following table.

Option	Search Result
Any	Default. Finds compounds in which the selected atoms can be a member of any type of ring, or a member of no ring at all.
No ring bonds	Finds compounds in which the selected atoms are acyclic.
As drawn	Finds compounds in which the selected atoms reside in the same type and number of rings as drawn.
Simple ring	Finds compounds in which the selected atoms is a member of only one ring (the atom has two ring bonds).
Fusion	Finds compounds in which the selected atoms lies at ring fusions (the atom has three ring bonds).
Spiro or higher	Finds compounds in which the selected atoms is a member of a spiro or higher linkage (the atom has four or more ring bonds).