Polycyclic Compound

In organic chemistry, a polycyclic compound is a cyclic compound with more than one hydrocarbon loop or ring structures (benzene rings). In general, the term includes all polycyclic aromatic compounds, including the polycyclic aromatic hydrocarbons, the heterocyclic aromatic compounds containing sulfur, nitrogen, oxygen, or another non-carbon atoms, and substituted derivatives of these.

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