bn:00065410n
Noun Concept
Categories: Pyrenes, Polycyclic aromatic hydrocarbons, PBT substances
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pyrene  Benzo(d,e,f)phenanthrene  Pyrenes
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Pyrene is a polycyclic aromatic hydrocarbon consisting of four fused benzene rings, resulting in a flat aromatic system. Wikipedia
A chemical compound. Wikipedia Disambiguation
A polycyclic aromatic hydrocarbon containing four fused benzene rings; first isolated from coal tar. Wiktionary
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