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...

In enzymology, a biuret amidohydrolase (EC 3.5.1.84) is an enzyme that catalyzes the chemical reaction biuret + H2O ⇌ {\displaystyle \rightleftharpoons...

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...

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...

protein type. The traditional method for measuring total protein uses the biuret reagent, but other chemical methods such as dye-binding and refractometry...

precipitant in protein crystallography and is also an ingredient in the Biuret reagent which is used to measure protein concentration. This ingredient...

160 °C: CO(NH2)2 → [NH4]+[OCN]− → NH3 + HNCO Heating above 160 °C yields biuret NH2CONHCONH2 and triuret NH2CONHCONHCONH2 via reaction with isocyanic acid:...

reactions of copper ions with the peptide bonds under alkaline conditions (the Biuret test) with the oxidation of aromatic protein residues. The Lowry method...

other compounds containing the phenol functional group. Therefore, the biuret test or the ninhydrin reaction are used along with it to confirm the presence...

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...

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...

stripper, so residence times in these stages are designed to be short. Biuret is formed when two molecules of urea combine with the loss of a molecule...

a chemical reaction to determine protein concentration. The Biuret assay utilizes a biuret reagent which turns purple in the presence of proteins due to...

to insoluble red copper(I) oxide. Copper(II) sulfate is also used in the Biuret reagent to test for proteins. Copper sulfate is used to test blood for anemia...

+ 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...

responses to tests for proteins used by physiological chemists - a positive Biuret test, precipitation by inorganic salts and cleavage by proteolytic enzymes...

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...

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...

identify pregnancy, a fodder for ruminants that used newsprint, a synthesis of biuret that could be used as an element of fodder, along with hundreds of other...

quantitation compared to previous methods: the Lowry procedure and the biuret assay. Unlike the previous methods, the Bradford assay is not susceptible...

(NH4)2CO3 The reaction produces a liquid. Intermediates and impurities include biuret, cyanuric acid, and potassium allophanate (KO2CNHC(O)NH2), as well as unreacted...

the method to be more accurate hypothetically. Lowry assay is similar to biuret assays, but it uses Folin reagent which is more accurate for quantification...

1002/14356007.n10_n03.pub2. ISBN 978-3-527-30673-2. Mikkelsen, R.L. (2007). "Biuret in Urea Fertilizers" (PDF). Better Crops. 91 (3): 6–7. Archived from the...

C2H5N3O2 (molar mass: 103.08 g/mol, exact mass: 103.0382 u) may refer to: Biuret N-Nitroso-N-methylurea (NMU) This set index page lists chemical structure...

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...

used in animal nutrition to refer collectively to components such as urea, biuret, and ammonia, which are not proteins but can be converted into proteins...

reduction Bischler–Möhlau indole synthesis Bischler–Napieralski reaction Biuret test Blaise ketone synthesis Blaise reaction Blanc reaction Blanc chloromethylation...

glucose and fructose The bicinchoninic acid assay tests for proteins The Biuret test tests for proteins and polypeptides Bradford protein assay measures...