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Topic: Ketone


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In the News (Sun 19 Nov 17)

  
  Reference.com/Encyclopedia/Ketone bodies
Ketone bodies are three water soluble compounds that are produced as by-products when fatty acids are broken down for energy.
Ketone bodies are transported from the liver to other tissues, where acetoacetate and beta-hydroxybutyrate can be reconverted to acetyl-CoA to produce energy, via the Krebs cycle.
Ketone bodies are produced from acetyl-CoA (see ketogenesis) mainly in the mitochondrial matrix of liver cells when carbohydrates are so scarce that energy must be obtained from breaking down fatty acids.
www.reference.com /browse/wiki/Ketone_bodies   (0 words)

  
  The MSDS HyperGlossary: Ketones and Aldehydes
Aldehydes and ketones are widely used industrial chemicals both as solvents and as chemical intermediates (ingredients for other chemicals).
Ketones and aldehydes are particularly incompatible with concentrated nitric and sulfuric acid mixtures.
Ketones may also be referenced in terms of medical condition called ketosis in which ketones build up in the body.
www.ilpi.com /msds/ref/ketone.html   (871 words)

  
  AllRefer.com - ketone (Organic Chemistry) - Encyclopedia
The simplest ketone, where R and R′ are methyl groups, is acetone; this is one of the most important ketones used in industry.
Ketones may be prepared by several methods, including the oxidation of secondary alcohols and the destructive distillation of certain salts of organic acids.
Ketones are related to the aldehydes but are less active chemically.
reference.allrefer.com /encyclopedia/K/ketone.html   (196 words)

  
 ketone. The Columbia Encyclopedia, Sixth Edition. 2001-05
The simplest ketone, where R and R´ are methyl groups, is acetone; this is one of the most important ketones used in industry.
Ketones may be prepared by several methods, including the oxidation of secondary alcohols and the destructive distillation of certain salts of organic acids.
Ketones are related to the aldehydes but are less active chemically.
www.bartleby.com /65/ke/ketone.html   (154 words)

  
 * Ketone - (Pregnancy & Parenting): Definition
The neonatal rat is well equipped to utilise ketone bodies for energy even in the fed state and ketone bodies begin to rise dramatically in neonatal plasma within the first 24 hours after birth (Widmaier, 1990).
Ketones can be found in the mother's blood and urine and are a sign of starvation.
Ketones are by-products of fat metabolism (when the body burns fat because there are no available carbohydrates), and have been known to be toxic to developing babies.
en.mimi.hu /pregnancy/ketone.html   (383 words)

  
 BioCarta - Charting Pathways of Life
Ketone bodies are transported to other tissues such as brain, muscle or heart where they are converted back to acetyl-CoA to serve as an energy source.
In the metabolic condition called ketosis, ketone bodies are produced faster than they are consumed by tissues and the smell of acetone can be detected on a person's breath.
The smell of acetone is one indication that a person may have diabetes.
www.biocarta.com /pathfiles/ketonebodiesPathway.asp   (183 words)

  
 Adult Health Advisor 2005.4: Ketone Testing
Ketones (sometimes called acetone) are chemicals that appear in the blood and urine when your body burns fat for energy.
Ketones also are produced when you have not eaten enough food to provide the energy your body needs.
Morning ketones can be a sign of a low blood sugar during the night followed by rebounding or bouncing back to a normal or high level by morning.
www.med.umich.edu /1libr/aha/aha_ketotest_crs.htm   (0 words)

  
 Ketone Summary
In the presence of an acid catalyst the ketone is subjected to so-called keto-enol tautomerism.
Ketones are elevated in blood after fasting including a night of sleep, and in both blood and urine in starvation, hypoglycemia due to causes other than hyperinsulinism, various inborn errors of metabolism, and ketoacidosis (usually due to diabetes mellitus).
Ketones are often used in perfumes and paints to stabilize the other ingredients so that they don't degrade as quickly over time.
www.bookrags.com /Ketone   (2379 words)

  
 children with DIABETES - Hyperglycemia and Ketone Testing
Since ketones in the blood can be detected well before ketones in the urine, there is the possibility to treat sooner than you would if you waited for urine testing to show a positive result.
Urine ketone testing uses urine ketone strips to determine the presence of ketones in the urine.
While foil wrapped ketone strips are more expensive per strip than a vial of ketone strips (about 40 cents per strip versus as little as 16 cents per strip for a vial of 100), you will likely throw away less strips due to expiration dates and could save money in the long run.
www.childrenwithdiabetes.com /d_0n_030.htm   (0 words)

  
 DiabetesNow   (Site not responding. Last check: )
High levels of ketones are harmful, so as soon as they start to rise your body tries to get rid of them in your urine.
Ketones can be smelt on your breath – they smell like pear drops or nail varnish.
Ketones accumulate in your urine over several hours, so measuring them in urine cannot tell you what your levels are right now.
www.diabetesnow.co.uk /library/ketones.asp   (1071 words)

  
 KETONE BODIES : Encyclopedia Entry
Ketone bodies are three chemicals that are produced as by-products when fatty acids are broken down for energy.
When even larger amounts of ketone bodies accumulate such that the body's pH is lowered to dangerously acidic levels, this state is called ketoacidosis.
Ketone bodies are produced from acetyl-CoA (see ketogenesis) mainly in the mitochondria of liver cells when carbohydrates are so scarce that energy must be obtained from breaking down fatty acids.
www.bibleocean.com /OmniDefinition/Ketone_bodies   (461 words)

  
 MedlinePlus Medical Encyclopedia: Diabetes
Ketones are produced by the breakdown of fat and muscle, and they are toxic at high levels.
Ketone testing is another test that is used in type 1 diabetes.
Ketones build up in the blood when there is not enough insulin in people with type 1 diabetes, eventually "spilling over" into the urine.
www.nlm.nih.gov /medlineplus/ency/article/001214.htm   (2265 words)

  
 [No title]
Methyl ethyl ketone is a federal hazardous air pollutant and was identified as a toxic air contaminant in April 1993 under AB 2728.
Methyl ethyl ketone is used as a solvent for lacquers, adhesives, rubber cement, printing inks, and paint removers, in cleaning solutions, as a catalyst, and as a carrier.
The network's mean concentration of methyl ethyl ketone from January 1996 to December 1996 is estimated to be 0.32 micrograms per cubic meter (µg/m3) or 0.11 parts per billion (ppb) (ARB, 1997c).
www.scorecard.org /chemical-profiles/html/methyl_ethyl_ketone.html   (0 words)

  
 The World Market for Ether-Alcohols, Ether-Phenols, Ether-Alcohol-Phenols; Alcohol, Ether, Ketone Peroxides; and ...
I have developed a methodology, based on macroeconomic and trade models, to estimate the market for ether-alcohols, ether-phenols, ether-alcohol-phenols; alcohol, ether, ketone peroxides; and halogenated, sulfonated, nitrated, or nitrosated derivatives for those countries serving the world market via exports or supplying from various countries via imports.
Chapter 4 does the same, but for imports of ether-alcohols, ether-phenols, ether-alcohol-phenols; alcohol, ether, ketone peroxides; and halogenated, sulfonated, nitrated, or nitrosated derivatives for all countries in the world.
Combined, Chapters 3 and 4 present the complete picture for imports and exports of ether-alcohols, ether-phenols, ether-alcohol-phenols; alcohol, ether, ketone peroxides; and halogenated, sulfonated, nitrated, or nitrosated derivatives to and from all major countries in the world.
www.marketresearch.com /researchindex/917658.html   (0 words)

  
 Ketone - Dictionary Definition and Meaning of Ketone   (Site not responding. Last check: )
Acetone.] (Chem.) One of a large class of organic substances resembling the aldehydes, obtained by the distillation of certain salts of organic acids and consisting of carbonyl ({CO) united with two hydrocarbon radicals.
In general the ketones are colorless volatile liquids having a pungent ethereal odor.
One of a large class of organic substances resembling the aldehydes, In general the ketones are colorless volatile liquids having a pungent ethereal odor.
www.wordiq.com /define?title=Ketone   (219 words)

  
 Methyl Ethyl Ketone (2-Butanone) | Technology Transfer Network Air Toxics Web site | US EPA   (Site not responding. Last check: )
The primary use of methyl ethyl ketone is as a solvent in processes involving gums, resins, cellulose acetate, and cellulose nitrate.
Tests involving acute exposure of rabbits has shown methyl ethyl ketone to have high acute toxicity from dermal exposure, while acute oral exposure of rats and mice has shown the chemical to have moderate toxicity from ingestion.
Methyl ethyl ketone is a colorless volatile liquid that is soluble in water.
www.epa.gov /ttn/atw/hlthef/methylet.html   (1318 words)

  
 Ketone strips - Ketone test strips
The ketone urine reagent test is based on the reaction of acetoacetic acid with sodium nitroprusside in a strongly basic medium.
Ketones are produced as a byproduct of protein or fat metabolism.
Some studies suggest that small amounts of ketones are used by the brain as a "food." We know that hunger is suppressed by moderate levels of ketones.
www.labessentials.com /Ketone_strips.htm   (395 words)

  
 Ch431_Lec_7Dec
The limiting factor in using ketone bodies then becomes the ability of the liver to synthesis them, which requires the induction of the enzymes required for acetoacetate biosynthesis.
Normal glucose concentrations inhibit ketone body synthesis, thus the ketone bodies will only begin to be synthesized in high concentrations as serum glucose concentrations fall.
The ketone bodies are water soluble and are transported across the inner mitochondrial membrane as well as across the blood-brain barrier and cell membranes.
www.humboldt.edu /~rap1/C431.F01/C431Notes/C431n07Dec.htm   (0 words)

  
 Shipping Information @ Ketone Automotive ketone.com   (Site not responding. Last check: )
Ketone Automotive is not responsible for typographical errors.
Any item purchased from Ketone Automotive which required a refund are subject to a 15% minimum restocking fee deducted from the purchase price (Shipping charges are not refundable).
We want you to be satisfied with your purchases, if not please return the item(s) to Ketone Automotive and we will either exchange the item(s), issue a store credit or refund (No Refunds or Returns on Color Cards and/or Video Tapes).
www.ketone.com /shipping.php?PHPSESSID=502f56768b0b47eab118fc2e7782570b   (577 words)

  
 Chemical Sampling Information: Methyl (n-amyl) ketone
Synonyms: Amyl methyl ketone; n-Amyl methyl ketone; 2-Heptanone; MAK
The major urinary metabolite of methyl n-amyl ketone in monkeys was identified as methyl n-amyl alcohol, although the unchanged compound was also excreted in urine.
Albro, P.W., Corbett, J.T. and Schroeder, J.L.: Metabolism of methyl n-amyl ketone (2-heptanone) and its binding to DNA of rat liver in vivo and in vitro.
www.osha.gov /dts/chemicalsampling/data/CH_251800.html   (0 words)

  
 HotBot Web Search for ketone
Ketone bodies - urine; Urine ketones: acetone, acetoacetic acid, and beta-hydroxybutyric acid...
A ketone (pronounced as key tone) is either the functional group characterized by a carbonyl group (O=C) linked to two other carbon atoms or a...
of the TCA cycle, and one result is the synthesis of ketone bodies, or ketogenesis.
www.hotbot.com /index.php?ps=null&loc=related11&tab=web&provKey=Inktomi&query=ketone   (0 words)

  
 Ketone Test Strips - How to Test for Ketosis
Ketone urine-testing strips, also known as Ketostix or "ketone sticks" are strips with a small absorptive pad.
This pad contains a chemical reagent that changes color (usually within 15-20 seconds) in the presence of ketones in the urine.
Ketone test strips can be purchased at any pharmacy, or chemist, and are usually found along with diabetic products.
www.carbs-information.com /ketone-test-strips.htm   (320 words)

  
 Chemical Sampling Information: Methyl vinyl ketone
Eder, E., Hoffman, C. and Deininger, C.: Identification and characterization of deoxyguanosine adducts of methyl vinyl ketone and ethyl vinyl ketone.
Morgan, D.L., et al.: Upper respiratory tract toxicity of inhaled methylvinyl ketone in F344 rats and B6C3F-1 mice.
Portoghese, P.S., Kedziora, G.S., Larson, D.L., Bernard, B.K. and Hall, R.L.: Reactivity of glutathione with a,ß-unsaturated ketone flavoring substances.
www.osha.gov /dts/chemicalsampling/data/CH_254820.html   (0 words)

  
 In Utero Brain Damage Caused by Toxic Solvent Exposure: Methyl Ethyl Ketone, Fetal Neurotoxicity, Microcephaly and ...
Certain chemicals, such as methyl ethyl ketone [MEK], have the capacity to produce microcephaly because they target the developing fetal brain and interfere with proper, timely, and adequate proliferation and migration of the neural cells.
A 1974 study by Schwetz et al, Embryo and Fetotoxicity of Inhaled Carbon Tetrachloride, 1,1Dychlorethane and Methyl Ethyl Ketone in Rats, Toxicology and Applied Pharmacology 28:452 (1974) [for Dow Chemical] reports significant fetotoxicity in rats at several doses and a significant incidence of structural malformations [imperforate anus and "bird jaw"] in the most heavilyexposed rats.
A followup rat study jointly commissioned by MEK manufacturers in 1978 and delivered to one manufacturer in 1979 also had strong positive findings of intrauterine growth retardation and other signs of fetotoxicity.
www.consumerlawpage.com /article/utero.shtml   (2340 words)

  
 Toxicologic Review of Selected Chemicals - 331   (Site not responding. Last check: )
This rule was remanded by the U.S. Circuit Court of Appeals and the limits are not currently in force.
Methyl isopropyl ketone is a colorless, flammable liquid.
The Agency concludes that this limit will protect workers against the significant risk of irritation, a material health impairment that is associated with exposure to this ketone at levels above the new PEL.
www.cdc.gov /niosh/pel88/563-80.html   (217 words)

  
 Ketone Manufacturer, Exporter, Supplier, Directory, China, Taiwan, Factory, Ketone, Product, Catalog
We have a broad range of Ketone manufacturers, exporters and suppliers source and trade services, which can be searched by this comprehensive vertical web portal.
We are dedicated to helping worldwide Ketone buyers sourcing and purchasing from China and Taiwan Ketone manufacturers, suppliers and exporters.
This latest updated page highlights pre-qualified Ketone manufacturers, exporters and suppliers with a factory located in China and Taiwan, which is broadcasted online by China Suppliers Directory - the sophisticated B2B directory covering useful Ketone market information and Ketone trade services displayed to its full extent by product photos and manufacturer background introductions.
www.china-suppliers.org /product_html/Ketone.html   (167 words)

  
 Industrial Paint Spray Guns Paint Industrial Supplies DuPont Zero Rust 3M Iwata DeVilbis
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If you have a special project or job that you are working on and need a quote on large quantities of various products please email us at info@ketoneindustrial.com or call us at 708-344-0207 and let us know more about your needs and we will do our best to assist you or your company.
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www.ketoneindustrial.com   (0 words)

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