Porphin, sometimes spelled porphine, is the parent chemical compound for types of biochemically significant compounds called porphyrins. The chemical formula of porphin is C20H14N4. Porphin is an organic compound that is aromatic and heterocyclic since its chemical structure, shown at right, essentially consists of four pyrrole rings joined togeth...
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A chemical made up of four pyrrole molecules linked by carbon-hydrogen bridges. The bonding arrangement within porphin is responsible for the reddish color of its derivatives. Porphin is the building block of both heme (found in hemoglobin) and chlorophyll.
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<protein> A cyclic tetrapyrrole in which the four pyrrole groups are linked by their alpha-carbon atoms via methene (-CH=) bridges, porphin is the partial compund of porphyrins. ... (14 Oct 1997) ...
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(por´fin) the fundamental ring structure of four linked pyrrole nuclei around which porphyrins, hemin, cytochromes, and chlorophyll are built.
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Type: Term Pronunciation: pōr′fin Definitions: 1. The unsubstituted cyclic tetrapyrrole nucleus that is the basis of the porphyrins. Synonyms: porphyrin
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