Description
Biuret is an analytical-grade organic compound with a minimum assay of 97 % and p.a. quality for laboratory use. Identified by CAS number 108-19-0 and empirical formula C₂H₅N₃O₂, it has a molar mass of 103,08 g/mol and a density of 1,46 g/cm³. Biuret is a well-established reagent in protein chemistry, notably in the biuret reaction for colorimetric determination of peptide bonds, and it also serves as a reference material and intermediate in organic and analytical workflows. This variant is Supplied at p.a. grade from manufacturer Carl ROTH, the product offers the purity level expected for reproducible spectrophotometric and wet-chemical methods. EG number 203-559-0 completes the substance identity for documentation. With clearly stated molar mass, density and assay, this biuret preparation is suited to protein assays, method validation and general laboratory applications requiring a defined urea-related reagent.
This article is part of Reagents for analysis (Ph. Eur., ASTM, DIN), in Analytical standards & reference materials.
Key features
- Appearance: white cryst. powder
- Assay (N): ≥97,0 %
- Melting point: 188-195 °C
- Loss on drying: ≤1 %
- CAS number: 108-19-0
- Pack sizes: 25 g, 50 g
- EG nr.: 203-559-0
- Purity: min. 97 %, p.a.
- Molar mass: 103,08 g/mol
- Density: 1,46 g/cm³
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Biuret, min. 97 %, p.a., 25 g, glass
What is this article?
Biuret, min. 97 %, p.a., 25 g, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Reagents for analysis (Ph. Eur., ASTM, DIN), inside Analytical standards & reference materials, in Lab chemicals.
A reagent for analysis is a chemical whose impurities are limited so they do not become a signal in a titration, a digestion or a photometric method. Pharmacopoeia, ASTM and DIN names point at different limit lists. The grade, not only the identity, is the purchase.
A reference material is the article against which another result is compared. Its value is stated, and the uncertainty of that value is part of the product. An ICP or ion standard is a solution of known concentration. A volumetric standard is for titration. A chromatography standard is the peak you match. The grade names, including pharmacopoeia and ASTM, say which impurities were limited. Identity is checked on PubChem. Names follow IUPAC. Medicinal grades follow the European Pharmacopoeia and USP.
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The category is Analytical standards & reference materials. The sub-category is Reagents for analysis (Ph. Eur., ASTM, DIN). The catalogue is Lab chemicals.
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