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Porphyrin definition

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A macrocyclic molecule that contains four pyrrole rings linked together by single carbon atom bridges between the alpha positions of the pyrrole rings. Porphyrins usually occur in their dianionic form coordinated to a metal ion.


See also:

potassium hydroxide (KOH) definition
Point Group definition
pre-process treatment chamber (PTC) definition
pressure amplitude definition
polyhedranes definition