Chemistry of Life

Molecular genetics, biochemistry

heterocyclic

Heterocyclic compounds contain a 5 or 6 atom ring structure such as found in benzene and aromatic hydrocarbons, but with other atoms substituting for ring carbons. Thus, atoms such as sulfur, oxygen or nitrogen comprise part of the ring. Examples are pyridine (C5H5N) and pyrimidine (C4H4N2), and the nucleic acids.

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. . . transcription begun 10/06/06