Porphin
- 21H, 23H - porphine
- Porphyrin
Dark red crystals
> 360 ° C ( decomposition)
- Soluble in pyridine, dioxane
- Poorly in chloroform and glacial acetic acid
- Insoluble in acetone and diethyl ether
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Porphine is a heterocyclic ( containing 4 nitrogen atoms ), aromatic ( satisfies the Hückel rule, 4n 2 π -electron ) chemical compound consisting of four pyrrole rings ( tetrapyrroles ) is constructed.
Porphine is, inter alia, iron, magnesium and copper complexes. It is the parent of all the porphyrins, the respiratory pigments. A porphyrin complex such as hemoglobin.
Because of the conjugated π - electron system porphine is colored, and indeed a deep red.