• Urea, also called carbamide (because it is a diamide of carbonic acid), is an organic compound with chemical formula CO(NH2)2. This amide has two amino...
    60 KB (6,974 words) - 16:00, 6 May 2024
  • Thumbnail for Blood urea nitrogen
    Blood urea nitrogen (BUN) is a medical test that measures the amount of urea nitrogen found in blood. The liver produces urea in the urea cycle as a waste...
    5 KB (607 words) - 16:53, 9 March 2024
  • The urea cycle (also known as the ornithine cycle) is a cycle of biochemical reactions that produces urea (NH2)2CO from ammonia (NH3). Animals that use...
    19 KB (2,139 words) - 09:24, 6 November 2023
  • medicine, the urea-to-creatinine ratio (UCR), known in the United States as BUN-to-creatinine ratio, is the ratio of the blood levels of urea (BUN) (mmol/L)...
    16 KB (1,958 words) - 15:50, 15 April 2024
  • Thumbnail for Urea phosphate
    Urea phosphate is a 1:1 combination of urea and phosphoric acid that is used as a fertilizer. It has an NPK formula 17-44-0, and is soluble in water,...
    2 KB (179 words) - 01:23, 3 March 2024
  • Thumbnail for Diesel exhaust fluid
    created by a diesel engine. Specifically, DEF is an aqueous urea solution made with 32.5% urea and 67.5% deionized water. DEF is consumed in a selective...
    21 KB (2,284 words) - 03:21, 26 April 2024
  • Coated urea fertilizers are a group of controlled release fertilizers consisting of prills of urea coated in less-soluble chemicals such as sulfur, polymers...
    4 KB (513 words) - 22:54, 23 March 2024
  • Urea-formaldehyde (UF), also known as urea-methanal, so named for its common synthesis pathway and overall structure, is a nontransparent thermosetting...
    20 KB (2,209 words) - 12:36, 17 February 2024
  • Thumbnail for Hydrogen peroxide - urea
    Hydrogen peroxide - urea (also called Hyperol, artizone, urea hydrogen peroxide, and UHP) is a white crystalline solid chemical compound composed of equal...
    15 KB (1,407 words) - 04:44, 30 December 2023
  • Thumbnail for Urea nitrate
    Urea nitrate is a fertilizer-based high explosive that has been used in improvised explosive devices in Afghanistan, Pakistan, Iraq, and various terrorist...
    6 KB (452 words) - 18:13, 3 April 2024
  • market and hoarding of urea. Urea that is coated with neem tree seed oil is called neem-coated urea. In January 2015, the urea manufacturers were mandated...
    3 KB (273 words) - 14:23, 30 August 2023
  • Thumbnail for Imidazolidinyl urea
    Imidazolidinyl urea is an antimicrobial preservative used in cosmetics [citation needed]. It is chemically related to diazolidinyl urea which is used in...
    5 KB (197 words) - 18:27, 14 May 2023
  • Thumbnail for Ureas
    In chemistry, ureas are a class of organic compounds with the formula (R2N)2CO where R = H, alkyl, aryl, etc. Thus, in addition to describing the specific...
    6 KB (609 words) - 04:37, 16 January 2024
  • Thumbnail for Uremia
    Uremia is the term for high levels of urea in the blood. Urea is one of the primary components of urine. It can be defined as an excess in the blood of...
    33 KB (3,274 words) - 23:59, 19 March 2024
  • Thumbnail for Urea breath test
    The urea breath test is a rapid diagnostic procedure used to identify infections by Helicobacter pylori, a spiral bacterium implicated in gastritis, gastric...
    7 KB (819 words) - 12:39, 24 January 2024
  • Thumbnail for Diazolidinyl urea
    Diazolidinyl urea is an antimicrobial preservative used in cosmetics. It is chemically related to imidazolidinyl urea which is used in the same way. Diazolidinyl...
    6 KB (355 words) - 21:39, 24 March 2024
  • In enzymology, a urea carboxylase (EC 6.3.4.6) is an enzyme that catalyzes the chemical reaction ATP + urea + HCO3- ⇌ {\displaystyle \rightleftharpoons...
    3 KB (232 words) - 16:16, 26 August 2023
  • Thumbnail for Urease
    Urease (redirect from Urea amidohydrolase)
    catalyze the hydrolysis of urea into carbon dioxide and ammonia: (NH2)2CO + H2O urease→ CO2 + 2NH3 The hydrolysis of urea occurs in two stages. In the...
    34 KB (4,155 words) - 21:20, 6 April 2024
  • Thumbnail for Urea-containing cream
    Urea, also known as carbamide-containing cream,[clarification needed] is used as a medication and applied to the skin to treat dryness and itching such...
    8 KB (554 words) - 19:27, 22 February 2024
  • A urea transporter is a membrane transport protein, transporting urea. Humans and other mammals have two types of urea transport proteins, UT-A and UT-B...
    6 KB (659 words) - 17:37, 3 December 2023
  • UAN (redirect from Urea ammonium nitrate)
    UAN is a solution of urea and ammonium nitrate in water used as a fertilizer. The combination of urea and ammonium nitrate has an extremely low critical...
    2 KB (212 words) - 14:02, 30 June 2023
  • Thumbnail for Nitrourea
    Nitrourea (redirect from Nitro urea)
    explosive compound synthesized by the nitration of urea or by way of a dehydration reaction of urea nitrate. "Nitrourea". CAMEO Chemicals. NOAA. 2.4. Ingersoll...
    2 KB (50 words) - 16:43, 1 May 2024
  • within living things. Friedrich Wöhler's conversion of ammonium cyanate into urea in 1828 is often cited as the starting point of modern organic chemistry...
    5 KB (529 words) - 11:18, 26 February 2024
  • Thumbnail for Hydrazine
    chloride byproduct: NH2Cl + NH3 → N2H4 + HCl Related to the Raschig process, urea can be oxidized instead of ammonia. Again sodium hypochlorite serves as the...
    51 KB (5,271 words) - 14:49, 21 May 2024
  • majority of the same biochemical tests are called urea and electrolytes (U&E or "U and Es"), or urea, electrolytes, creatinine (UEC or EUC or CUE), and...
    5 KB (492 words) - 09:35, 4 February 2024
  • Thumbnail for Bosch-Meiser process
    chemists Carl Bosch and Wilhelm Meiser for the large-scale manufacturing of urea, a valuable nitrogenous chemical. The whole process consists of two main...
    10 KB (1,245 words) - 08:55, 30 April 2024
  • Thumbnail for Barbital
    Barbital (redirect from Diethylmalonyl urea)
    groups, they prepared diethylacetyl urea, diethylmalonyl urea (i.e., Barbital itself), and dipropylmalonyl urea. All three were found to be hypnotics:...
    12 KB (1,150 words) - 11:01, 29 April 2024
  • Urea-molasses multinutrient blocks may be used as a source of nitrogen and energy for animals. Urea is a nitrogen-based compound produced in the kidneys...
    3 KB (441 words) - 08:00, 11 October 2022
  • Thumbnail for Methylol urea
    Methylol urea is the organic compound with the formula H2NC(O)NHCH2OH. It is a white, water-soluble solid that decomposes near 110 °C. Methylolurea is...
    2 KB (130 words) - 22:06, 1 October 2023
  • Urine urea nitrogen (UUN) refers to a test that measures the urine urea to assess nitrogen balance. Urea nitrogen is the end product of breakdown of proteins...
    3 KB (347 words) - 06:26, 5 May 2024