Definition: The term "pyrroporphyrin" is a chemical compound commonly known as a pyrimidine or pyrrolopyrimidine. Pyrimidines are a class of nitrogen-containing organic molecules that include the pyrimidine diphosphate (dP) and pyrimidine (P), which are both common components in nucleic acids, including DNA and RNA. In particular, pyrroporphyrin is a type of pyrimidine that contains the nitrogen atom
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