Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound
Biuret (/ˈbjurɛt/BYUR-ret) is a chemical compound with the chemical formula HN(CONH2)2. It is a white solid that is soluble in hot water. A variety of organic derivatives are known. The term "biuret" also describes a family of organic compounds with the chemical formula R1R2N−C(=O)−N(R3)−C(=O)−NR4R5, where R1, R2, R3, R4 and R5 are hydrogen, organyl or other groups. Also known as carbamylurea, it results from the condensation of two equivalents of urea. It is a common undesirable impurity in urea-based fertilizers, as biuret is toxic to plants.
^ abFavre, Henri A.; Powell, Warren H. (2014). Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. p. 866. doi:10.1039/9781849733069. ISBN 978-0-85404-182-4.
^ abcdeScifinder, version 2007.1; Chemical Abstracts Service: Columbus, OH; RN 108-19-0 (accessed June 15, 2012)
Biuret (/ˈbjurɛt/ BYUR-ret) is a chemical compound with the chemical formula HN(CONH2)2. It is a white solid that is soluble in hot water. A variety of...
In chemistry, the Biuret test (IPA: /ˌbaɪjəˈrɛt/, /ˈbaɪjəˌrɛt/), also known as Piotrowski's test, is a chemical test used for detecting the presence of...
Lansoprazole, sold under the brand name Prevacid among others, is a medication which reduces stomach acid. It is a proton pump inhibitor (PPI), used to...
In enzymology, a biuret amidohydrolase (EC 3.5.1.84) is an enzyme that catalyzes the chemical reaction biuret + H2O ⇌ {\displaystyle \rightleftharpoons...
to 1.5 mg/mL), similar to Lowry protein assay, Bradford protein assay or biuret reagent. The total protein concentration is exhibited by a color change...
streams. Intermediates in the dehydration include both isocyanic acid, biuret, and triuret: H2N-CO-NH2 → HNCO + NH3 H2N-CO-NH2 + HNCO → H2N-CO-NH-CO-NH2...
protein type. The traditional method for measuring total protein uses the biuret reagent, but other chemical methods such as dye-binding and refractometry...
reactions of copper ions with the peptide bonds under alkaline conditions (the Biuret test) with the oxidation of aromatic protein residues. The Lowry method...
precipitant in protein crystallography and is also an ingredient in the Biuret reagent which is used to measure protein concentration. This ingredient...
detect the presence of cuprous ions, due to its purple coloration via a biuret reaction. In this assay, two molecules of bicinchoninic acid chelate a single...
+ R'NCO → R2NC(O)N(H)R' The addition of an isocyanate to a urea gives a biuret: R2NC(O)N(H)R' + R''NCO → R2NC(O)NR'C(O)NHR'' Reaction between a di-isocyanate...
quantitation compared to previous methods: the Lowry procedure and the biuret assay. Unlike the previous methods, the Bradford assay is not susceptible...
Hofmeister made the proposal in the morning, based on his observations of the biuret reaction in proteins. Hofmeister was followed a few hours later by Emil...
Alternative protein assays include: Ultraviolet–visible spectroscopy RGBradford Biuret protein assay Lowry protein assay BCA protein assay Amido black protein...
winning the K-Pop India Contest, Techi toured with the Korean pop-rock band BIURET on their maiden visit to India. While on Tour, her appearances at Music...
H2NC(O)NHCO2H. It is a carbamic acid, the carboxylated derivative of urea. Biuret can be viewed as the amide of allophanic acid. The compound can be prepared...
responses to tests for proteins used by physiological chemists - a positive Biuret test, precipitation by inorganic salts and cleavage by proteolytic enzymes...
to aircraft and vessels. HDI is also sold oligomerized as the trimer or biuret which are used in automotive refinish coatings. Although more viscous in...
\rightleftharpoons } biuret + CO2 Thus, the two substrates of this enzyme are cyanuric acid and H2O, whereas its two products are biuret and CO2. This enzyme...
the condensation reaction among 2 moles of dicyandiamide and 1 mole of biuret. 2 C2H4N4 + C2H5N3O2 → 2C3H5N5O + NH3 Ammeline is weakly acidic with pKa...
of the Schiff test. He also worked in the field of amino acids and the Biuret reagent. Born in Frankfurt am Main, Schiff was a student of Friedrich Wöhler...
glucose and fructose The bicinchoninic acid assay tests for proteins The Biuret test tests for proteins and polypeptides Bradford protein assay measures...
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