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.

In organic chemistry, a cycloalkane is a compound with a structure in which carbon atoms are linked in a ring.

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He is suffering from the misery brought by literacy.

The chromatophores of a frog play an important role in changing its body color.

That man is my father.

What is the second item of this list?

He was hospitalized due to mental derangement.