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In organic chemistry, cyclobutane has a structure in which four carbon atoms are bonded in a ring.

Cyclopropane is a compound often used in organic chemistry.

Cycloalkene is a compound often used in organic chemistry.

Cycloheptane is a compound often used in organic chemistry.

Cycloalkyne plays an important role in organic chemistry.

Cyclononane is a compound often used in organic chemistry.

In organic chemistry, cyclodecane is a cyclic saturated hydrocarbon consisting of ten carbon atoms.

This compound is called cycloheptadecane and is often used in organic chemistry.