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... > substâncias > chemical compounds (en) > composto orgânico > hidrato de carbono > glicósido > porfirina

Preferred term

Created: 1998-08-04T00:00:00Z

Last modified: 2021-06-16T21:24:42Z

Notation: 6121

porfirina  

Definition

  • Information A group of compounds containing the porphin structure, four pyrrole rings connected by methine bridges in a cyclic configuration to which a variety of side chains are attached. The nature of the side chain is indicated by a prefix, as uroporphyrin, hematoporphyrin, etc. The porphyrins, in combination with iron, form the heme component in biologically significant compounds such as hemoglobin and myoglobin.

    Created: 2/6/25

     (en)

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http://aims.fao.org/aos/agrovoc/c_6121

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