Denoting a compound whose molecule contains a ring of atoms of at least two elements (one of which is generally carbon).
- The majority of photosensitive molecules have a heterocyclic ring structure similar to that of chlorophyll or hemoglobin.
- Unlike hydrocarbon based aromatics, which react most readily with electrophiles, perfluoro-aromatics and heterocyclic ring systems react better with nucleophiles.
- Cooking meats at high temperatures creates chemicals called heterocyclic amines that are otherwise not present in uncooked meats.
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