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- Porphyrin abstract "Porphyrins are a group of organic compounds, many naturally occurring. One of the best-known porphyrins is heme, the pigment in red blood cells; heme is a cofactor of the protein hemoglobin. Porphyrins are heterocyclic macrocycles composed of four modified pyrrole subunits interconnected at their α carbon atoms via methine bridges (=CH−). Porphyrins are aromatic. That is, they obey Hückel's rule for aromaticity, possessing 4n+2 π electrons (n=4 for the shortest cyclic path) delocalized over the macrocycle. Thus porphyrin macrocycles are highly conjugated systems. As a consequence, they typically have very intense absorption bands in the visible region and may be deeply colored; the name "porphyrin" comes from a Greek word for purple. The macrocycle has 26 pi electrons in total. The parent porphyrin is porphine, and substituted porphines are called porphyrins. The specific porphyrin in heme B (see Figure) is called protoporphyrin IX and has 4 methyl, two vinyl, and two propionic acid substituents at the indicated positions.".
- Porphyrin thumbnail Porphyrin.svg?width=300.
- Porphyrin wikiPageExternalLink nicezyme.pl?1.3.3.3.
- Porphyrin wikiPageExternalLink nicezyme.pl?1.3.3.4.
- Porphyrin wikiPageExternalLink nicezyme.pl?2.3.1.37.
- Porphyrin wikiPageExternalLink nicezyme.pl?2.5.1.61.
- Porphyrin wikiPageExternalLink nicezyme.pl?4.1.1.37.
- Porphyrin wikiPageExternalLink nicezyme.pl?4.2.1.24.
- Porphyrin wikiPageExternalLink nicezyme.pl?4.2.1.75.
- Porphyrin wikiPageExternalLink nicezyme.pl?4.99.1.1.
- Porphyrin wikiPageExternalLink dispomim.cgi?id=121300.
- Porphyrin wikiPageExternalLink dispomim.cgi?id=125270.
- Porphyrin wikiPageExternalLink dispomim.cgi?id=125290.
- Porphyrin wikiPageExternalLink dispomim.cgi?id=176000.
- Porphyrin wikiPageExternalLink dispomim.cgi?id=176100.
- Porphyrin wikiPageExternalLink dispomim.cgi?id=177000.
- Porphyrin wikiPageExternalLink dispomim.cgi?id=600923.
- Porphyrin wikiPageExternalLink dispomim.cgi?id=606938.
- Porphyrin wikiPageExternalLink www.porphyrin.net.
- Porphyrin wikiPageExternalLink 7376.html.
- Porphyrin wikiPageExternalLink jpp.
- Porphyrin wikiPageID "182499".
- Porphyrin wikiPageRevisionID "601883505".
- Porphyrin hasPhotoCollection Porphyrin.
- Porphyrin subject Category:Biomolecules.
- Porphyrin subject Category:Chelating_agents.
- Porphyrin subject Category:Metabolism.
- Porphyrin subject Category:Photosynthesis.
- Porphyrin subject Category:Porphyrins.
- Porphyrin subject Category:Supramolecular_chemistry.
- Porphyrin comment "Porphyrins are a group of organic compounds, many naturally occurring. One of the best-known porphyrins is heme, the pigment in red blood cells; heme is a cofactor of the protein hemoglobin. Porphyrins are heterocyclic macrocycles composed of four modified pyrrole subunits interconnected at their α carbon atoms via methine bridges (=CH−). Porphyrins are aromatic.".
- Porphyrin label "Porfirina".
- Porphyrin label "Porfirina".
- Porphyrin label "Porfirinas".
- Porphyrin label "Porfiryny".
- Porphyrin label "Porfyrine".
- Porphyrin label "Porphyrin".
- Porphyrin label "Porphyrine".
- Porphyrin label "Porphyrine".
- Porphyrin label "Порфирины".
- Porphyrin label "ポルフィリン".
- Porphyrin label "卟啉".
- Porphyrin sameAs Porfyriny.
- Porphyrin sameAs Porphyrine.
- Porphyrin sameAs Πορφυρίνες.
- Porphyrin sameAs Porfirinas.
- Porphyrin sameAs Porfirina.
- Porphyrin sameAs Porphyrine.
- Porphyrin sameAs Porfirina.
- Porphyrin sameAs ポルフィリン.
- Porphyrin sameAs 포르피린.
- Porphyrin sameAs Porfyrine.
- Porphyrin sameAs Porfiryny.
- Porphyrin sameAs Porfirina.
- Porphyrin sameAs m.018y9c.
- Porphyrin sameAs Q422926.
- Porphyrin sameAs Q422926.
- Porphyrin wasDerivedFrom Porphyrin?oldid=601883505.
- Porphyrin depiction Porphyrin.svg.
- Porphyrin isPrimaryTopicOf Porphyrin.
