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.

双缩脲 （英語： Biuret）通常指化学式为 [H 2 NC (O)] 2 NH 的 有机化合物，是两分子 尿素 的脱氨产物，常温下为白色固体，易溶于热水。 同时， 双缩脲 也指带有 - (HN-CO-) 2 N- 这一 官能团 的化合物，如 [Me (H)NC (O)] 2 NH 称为二甲基双缩脲（dimethyl biuret）。 ^ Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014: 866.

雙縮脲（英語： Biuret ）通常指化學式為 [H 2 NC(O)] 2 NH 的有機化合物，是兩分子尿素的脫氨產物，常溫下為白色固體，易溶於熱水。 同時， 雙縮脲 也指帶有 -(HN-CO-) 2 N- 這一 官能團 的化合物，如 [Me(H)NC(O)] 2 NH 稱為二甲基雙縮脲（dimethyl biuret）。

双缩脲是一种有机物，化学式为C2H5N3O2，是两个分子脲（即尿素）经181.25℃左右加热，放出一个分子氨（NH3）后得到的产物。 用作医药中间体、生长激素、发泡剂、制漆。 鉴定生物组织中是否含有蛋白质时，常用双缩脲法，使用的是双缩脲试剂（NaOH+CuSO4），发生的是双缩脲反应。 双缩脲反应实质是在碱性环境下的Cu2+与双缩脲发生的紫色反应。 而蛋白质分子中含有很多与双缩脲（H2NOC-NH-CONH2）结构相似的肽键，所以蛋白质都能与双缩脲试剂发生颜色 …

In chemistry, the biuret test (IPA: / ˌbaɪjəˈrɛt /, / ˈbaɪjəˌrɛt / [1]), also known as Piotrowski's test, is a chemical test used for detecting the presence of at least two peptide bonds in a molecule. In the presence of peptides, a copper (II) ion forms mauve -colored coordination complexes in an alkaline solution.

Biuret is a member of the class of condensed ureas that is the compound formed by the condensation of two molecules of urea; the parent compound of the biuret group of compounds. Used as a non-protein nitrogen source in ruminant feed.

2024年5月22日 · Biuret Test is the test used to detect the presence of peptide bonds in the sample and to test for the presence of proteins or peptides. Proteins and peptides are polymers of amino acids. They are chains of amino acids as well as other biomolecules or ions or compounds.

Biuret is a colorimetric technique used for proteins and peptides, where copper salts in alkaline solution create a purple complex with substances containing two or more peptide bonds. This method is suitable for determining total protein concentration in a reaction system.

2025年1月27日 · Biuret is a compound formed from urea when the temperature during the manufacture of urea goes above 140 to 170°C. A biuret concentration of more than 2% in urea is harmful to plants as it affects the metabolism of proteins. Purification Methods. Crystallise biuret from EtOH. [Beilstein 3 IV 141.]

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.