Reference results for Porphyrin from

Porphyrin - Wikipedia, the free encyclopedia

Porphyrins are often used to construct structures in supramolecular chemistry. These systems take advantage of the Lewis acidity of the metal, typically zinc.

Porphyrin Tests: The Test

Describes how porphyrin tests are used, when porphyrin tests are ordered, and what the results of a porphyrin test might mean

Porphyrin | definition of porphyrin by Medical dictionary

porphyrin [por´fĭ-rin] any of a group of iron- or magnesium-free cyclic tetrapyrrole derivatives, occurring universally in protoplasm, and forming the basis of the ...

porphyrin | biological pigment |

Porphyrin, any of a class of water-soluble, nitrogenous biological pigments (biochromes), derivatives of which include the hemoproteins (porphyrins combined with ...

Those red tears: porphyrin and the Norway rat

Porphyrin and Norway rats. To the rat enthusiast, one porphyrin is of particular interest: the one that is secreted by the Harderian gland and appears around the rat ...

Porphyrin | Define Porphyrin at

noun, Biochemistry. 1. a dark red, photosensitive pigment consisting of four pyrrole rings linked by single carbon atoms: a component of chlorophyll, heme, and ...


Discusses the types, causes, symptoms, diagnosis, and treatment of porphyria. ... Porphyrins and porphyrin precursors of heme then build up in the body and cause illness.

Porphyrin | Definition of Porphyrin by Merriam-Webster

: any of various compounds with a structure that consists essentially of four pyrrole rings joined by four =CH− groups; especially : one (as chlorophyll or ...

Porphyrin | Article about Porphyrin by The Free Dictionary

porphyrin [′pȯr·fə·rən] (biochemistry) A class of red-pigmented compounds with a cyclic tetrapyrrolic structure in which the four pyrrole rings are joined ...

Porphyria: Types, Symptoms, Causes, and Treatment - WebMD

WebMD explains the causes, symptoms, and treatment of porphyria -- a group of disorders that can cause nerve or skin problems.