porphyrin

If all the porphyrin studies are negative, one has to consider pseudoporphyria.

Porphyrin compounds containing zinc have been known since the 1930s.

If it's the same person, I knew him fairly well ten years ago, when he was working on porphyrin syntheses.

Details of heme synthesis can be found in the article on porphyrin.

This test is used to diagnose porphyrin disorders involving red blood cells.

Since porphyria is not that common, most doctors don't even think to do blood porphyrin levels when symptoms present.

An "S" at the end of the name indicates that the parent porphyrin was sulfonated.

Some porphyrin derivatives follow Hückel's rule, but most do not.

Four pyrrole rings are joined in a ring structure called a porphyrin.

It is an iron ion in the center of a large organic ring called a porphyrin.

The electronic structure of porphyrin oxoiron compounds has been reviewed.

He is an internationally recognized expert in porphyrin chemistry and biochemistry.

In haemoglobin the iron lies within a flat circular molecule called a porphyrin.

In peroxidase reactions, the porphyrin molecule also serves as an electron source.

See the Porphyrin article for further details.

Used in measurement of HbA1c, porphyrin & water purification.

It catalyzes the second step of the biosynthesis of porphyrin.

Myoglobin contains a porphyrin ring with an iron center.

Total porphyrin levels measure total red blood cell porphyrins.

A geoporphyrin, also known as a petroporphyrin, is a porphyrin of geologic origin.

This is often the case with biological porphyrin compounds, especially with an iron atom in the center.

Motyxias photoprotein contains a porphyrin and is about 104 kDa in size.

As a ligand, porphyrin forms many complexes with metallic ions.

Such chelating agents include the porphyrin rings in hemoglobin and chlorophyll.

A later paper investigated using non-covalent bonding to attach the iron-containing porphyrin.