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Urea, also called carbamide (because it is a diamide of carbonic acid), is an organic compound with chemical formula CO(NH 2) 2. This amide has two amino groups (– NH 2 ) joined by a carbonyl functional group (–C(=O)–).
The molecular formula CH 4 N 2 O (molar mass: ... Urea, or carbamide; Ammonium cyanate; Formylhydrazine This page was last edited on 7 May 2024, at 00:09 ...
Biotin, a water-soluble B vitamin, is a bicyclic urea.. In chemistry, ureas are a class of organic compounds with the formula (R 2 N) 2 CO where R = H, alkyl, aryl, etc. Thus, in addition to describing the specific chemical compound urea ((H 2 N) 2 CO), urea is the name of a functional group that is found in many compounds and materials of both practical and theoretical interest.
Thiourea (/ ˌ θ aɪ. oʊ j ʊəˈr iː. ə,-ˈ jʊər i-/) [2] [3] [4] is an organosulfur compound with the formula SC(NH 2) 2 and the structure H 2 N−C(=S)−NH 2.It is structurally similar to urea (H 2 N−C(=O)−NH 2), except that the oxygen atom is replaced by a sulfur atom (as implied by the thio-prefix); however, the properties of urea and thiourea differ significantly.
Hydrogen peroxide–urea (also called Hyperol, artizone, urea hydrogen peroxide, and UHP) is a white crystalline solid chemical compound composed of equal amounts of hydrogen peroxide and urea. It contains solid and water -free hydrogen peroxide, which offers a higher stability and better controllability than liquid hydrogen peroxide when used ...
The k cat /K m of urease in the processing of urea is 10 14 times greater than the rate of the uncatalyzed elimination reaction of urea. [5] There are many reasons for this observation in nature. The proximity of urea to active groups in the active site along with the correct orientation of urea allow hydrolysis to occur rapidly.
Nearly 97% of South Korea's urea imports came from China between January and September. In 2015, South Korea had made it mandatory for diesel cars to use urea solutions to control emissions, a move that now impacts 40% of registered vehicles. Diesel vehicles made since 2015 were required to be fitted with SCR systems. [28]
The word polyurea is derived from the Greek words πολυ- - poly- meaning "many"; and ουρίας - oûron meaning "to urinate" (referring to the substance urea, found in urine). Urea or carbamide is an organic compound with the chemical formula (NH 2) 2 CO. The molecule has two amine groups (–NH 2) joined by a carbonyl functional group (C=O).