Medical term:

porphin


porphin

 [por´fin]
the fundamental ring structure of four linked pyrrole nuclei around which porphyrins, hemin, cytochromes, and chlorophyll are built.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

por·phin

, porphine (pōr'fin),
The unsubstituted cyclic tetrapyrrole nucleus that is the basis of the porphyrins.
See also: porphyrins. Compare: chlorin, phorbin, corrin.
Synonym(s): porphyrin
Farlex Partner Medical Dictionary © Farlex 2012

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