L-Threonine CAS:72-19-5

• Post Date:

  May 29,2013

• Expiry Date:

  May 29,2014

• Detailed Description:

  Cas No. :72-19-5 Quantity: 20Metric Tons
  Specs:99.0 to 101.0%
  Payment Method: TT/LC
  L-Threonine CAS:72-19-5
  
  slightly sweet taste crystalline powder C4H9NO3 AJI 92 Food Grade Amino Acids L-Threonine
  
  Abbreviation: L-Thr
  CAS Number: 72-19-5
  Conforms To: AJI, USP, EP
  Chemical Name: (2S,3R)-2-Amino-3 -hydroxybutanoic Acid
  Chemical Formula: C4H9NO3
  Molecular Weight: 119.12
  Nitrogen Content: 0.1176
  Assay: 99.0 to 101.0%
  Solubility: Soluble in water
  Property: White crystals or crystalline powder; slightly sweet taste
  L-threonine is classified as an essential amino acid. Humans do not synthesize L-threonine, so it must be obtained through the diet. The male adult’s daily requirement is 7 mg per kg of body weight. Most people will get sufficient L-threonine through the diet, but as threonine content in grains is low, vegetarians are more likely than others to have deficiencies and should consider supplementation.
  L-threonine is a key component of collagen, elastin and enamel proteins. It aids in proper fat metabolism in the liver; nutrients are more readily absorbed when threonine is present. L-threonine also helps the digestive and intestinal tracts function more smoothly. Experts believe that L-threonine enhances the immune system by aiding in the production of antibodies.
  Applications:
  L-threonine is an essential amino acid, mainly used in pharmaceutical, chemical reagents, food fortifiers, and feed additives. In particular, the amount used in feed additives grows rapidly. L-threonine with the feed has the following characteristics: ① can adjust the amino acid balance in the feed to promote livestock growth; (2) to improve the meat; (3) improve the nutritional value of amino acid with low digestion rate ④ can reduce feed raw material costs; in the EU (mainly Germany, Belgium, Denmark, etc.) and the American States, it has been widely used in feed industry.
  
  
  Specifications:
  
  Item Specification( AJI92) Results
  Identification Meets the requirements Conforms
  Appearance White crystals or crystalline Powder; powdercrystalline Conforms
  Stata of solution (transmittance T430) Clear and colorless Not less than 98.0% 98.5%
  Specific rotation [α]D20 -27.6°to -29.0° -28.3°
  Chloride(Cl) Not more than 0.020% Less than 0.02%
  Ammonium (NH4) Not more than 0.02% Less than 0.02%
  Sulfate(SO4) Not more than 0.020% Less than 0.02%
  Iron(Fe) Not more than 10ppm Less than 6ppm
  Arsenic (As2O3) Not more than 1ppm Less than 1ppm
  Other amino acids Not detected Conforms
  Heavy metals(Pb) Not more than 10ppm Less than 10ppm
  Loss on drying Not more than 0.20% 0.05%
  Residue on ignition (sulfated) Not more than 0.10% 0.05%
  Assay 99.0% to 100.5% 99.6%
  PH 5.2 to 6.2 5.8
  
  

• CAS Registry Number:

  72-19-5

• Synonyms:

  ;L-2-Amino-3-hydroxybutyric acid;L-Threonine, USP Grade;L-Threonine, allo-Free;H-Thr-OH;(2S,3R)-(-)-Threonine;Thr;(2S,3R)-2-Amino-3-hydroxybutyric acid;2-Amino-3-hydroxybutanoic acid;1-(4-fluorophenyl)-2,5-dimethyl-1H-pyrrole-3-carbaldehyde semicarbazone;Threonine;L-Threonin;

• Molecular Formula:

  C₄H₉NO₃

• Molecular Weight:

  119.1192

• Molecular Structure:

  

• Safety Description:

  S24/25:;
  

• Company:

  Yuancheng Pharmaceutical Co., Ltd Hubei     [ China ]        

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  Lupin

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