The term `biuret` also describes a family of organic compounds with the functional group -(HN-CO-)2N-. Thus dimethyl biuret is CH3HN-CO-NR`-CO-NHCH3. A variety of organic derivatives are possible. ==Preparation== The parent compound can be prepared by heating urea above the melting point at which temperature ammonia is expelled: Under related c......
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(bi´u-rәt) a urea derivative that forms a chelate having an intense violet-red color with copper sulfate in alkaline solution; this reaction is known as the biuret reaction. The same reaction also occurs when compounds having two or more adjacent peptide bonds (for example, proteins), are reacted with copper...
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http://www.encyclo.co.uk/local/21001
Bi'u·ret noun [ Prefix
bi- +
urea .]
(Chemistry) A white, crystalline, nitrogenous substance, C
2 O
2 N
3 H
5 , formed by heating urea. It is intermediate between urea and cyanuric acid.
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http://www.encyclo.co.uk/webster/B/59
Type: Term Pronunciation: bī-yū-ret′ Definitions: 1. A derivative of urea obtained by heating, eliminating one NH
3 between two ureas. Used in protein determinations. Synonyms: carbamoylurea
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http://www.medilexicon.com/medicaldictionary.php?t=10527
a white crystalline substance, CHON&multiplydot;HO, soluble in water and alcohol, used for the identification of urea, from which it is formed on heating. Also called
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https://www.infoplease.com/dictionary/biuret
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