Porphyrin

A porphyrin is a heterocyclic macrocycle made from 3 pyrrole subunits and one pyrroline subunit, and linked on opposite sides through 4 methine bridges. The macrocycle, therefore, is more aromatic, than the related corrins or chlorins. The extensive conjugated system makes the compound chromatic, hence the name "porphyrin" from a Greek word for purple.

Related Topics:
Macrocycle - Pyrrole - Pyrroline - Methine - Aromatic - Corrin - Chlorin - Conjugated system - Greek - Purple

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