Polycyclic aromatic hydrocarbon (ovalene, PAH) molecule, chemical structure. Ovalene  is an environmental pollutant and known to be carcinogenic, mutagenic and teratogenic.

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Polycyclic aromatic hydrocarbon (ovalene, PAH) molecule, chemical structure. Ovalene is an environmental pollutant and known to be carcinogenic, mutagenic and teratogenic.