protohemin
Học thuậtThân thiện
Definition
Noun: A reddish-brown crystalline compound that is the chloride salt of hemin. It is formed from hemoglobin and is used in laboratory tests as a standard or indicator for the presence of blood.
Usage
Protohemin is a specific chemical substance used primarily in scientific and medical contexts. * The laboratory technician used protohemin as a reference standard in the blood detection assay. * The formation of protohemin crystals is a classic test for confirming the presence of blood in a forensic sample.
Advanced Usage
- Chemical Analysis: Protohemin serves as a key comparative standard in spectroscopic analysis to identify heme derivatives in biological samples.
- Biochemical Research: In research, protohemin is used to study the properties of heme and its role in various biological processes.
Variants and Related Words
- Hemin (noun): The general term for the iron-containing porphyrin compound, of which protohemin is a specific chloride salt.
- Heme (noun): The iron-porphyrin complex that is a component of hemoglobin and other proteins. Protohemin is derived from heme.
Synonyms
- Hemin chloride
- Ferriheme chloride
Notes on Meaning
This word has a single, highly specialized meaning in biochemistry and analytical chemistry. It refers exclusively to the specific chemical compound produced from hemoglobin for testing purposes.
Noun
- a reddish-brown chloride of heme; produced from hemoglobin in laboratory tests for the presence of blood