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L-Lysine

L-Lysine Suppliers list
Company Name: Capot Chemical Co.,Ltd.
Tel: +86 (0)571-855 867 18
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Products Intro: Product Name:L-Lysine
CAS:56-87-1
Purity:98%(Min,GC) Package:100g;1kg;5kg,10kg,25kg,50kg
Company Name: Shenzhen Sendi Biotechnology Co.Ltd.
Tel: 0755-23311925 18102838259
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Products Intro: Product Name:L-Lysine
CAS:56-87-1
Purity:99% Package:143/KG
Company Name: Henan DaKen Chemical CO.,LTD.
Tel: +86-371-55531817
Email: info@dakenchem.com
Products Intro: Product Name:L-Lysine
CAS:56-87-1
Purity:99% Package:100g,500g,1KG,10KG,100KG
Company Name: Shanghai Bojing Chemical Co.,Ltd.
Tel: +86-21-37122233
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Products Intro: Product Name:L-Lysine
CAS:56-87-1
Purity:FCCIV/USP24 Package:1Kg;25kg/ Drum or as customer request
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: 0371-55170693
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Products Intro: CAS:56-87-1
Purity:99% Package:500G;1KG;5KG;25KG

Lastest Price from L-Lysine manufacturers

  • L-Lysine Base
  • US $20.00 / KG
  • 2019-05-13
  • CAS:56-87-1
  • Min. Order: 10KG
  • Purity: 98%
  • Supply Ability: 100kg
  • L-Lysine
  • US $100.00 / KG
  • 2019-05-13
  • CAS:56-87-1
  • Min. Order: 1KG
  • Purity: 99%
  • Supply Ability: Customized
L-Lysine Basic information
Product Name:L-Lysine
Synonyms:L - LYSINE FREE BASE (ANHYDROUS);L-Lizine cormob crystalline;L-LYSINE (BASE) pure;L-LYSINE BASE MONOHYDRATE pure;L-Lysine,98+%;L-LYSINE CRYST.RESEARCH GRADE;L-Lysine,(S)-2,6-Diaminocaproic acid;LYSINE, L-(+)-(P)
CAS:56-87-1
MF:C6H14N2O2
MW:146.19
EINECS:200-294-2
Product Categories:-;alpha-Amino Acids;Biochemistry;Nutritional Supplements;Amino Acids;Amino Acids & Derivatives;Food additives;Thiazines ,Halogenated Heterocycles ,Thiazoles;Intermediates & Fine Chemicals;Pharmaceuticals;Amino Acid Derivatives;Lysine [Lys, K];Amino Acids
Mol File:56-87-1.mol
L-Lysine Structure
L-Lysine Chemical Properties
Melting point 215 °C (dec.)(lit.)
alpha D20 +14.6° (c = 6.5); D23 +25.9° (c = 2 in 6.0N HCl)
Boiling point 265.81°C (rough estimate)
density 1.1360 (rough estimate)
refractive index 26 ° (C=2, 5mol/L HCl)
FEMA 3847 | L-LYSINE
storage temp. Store at RT.
solubility H2O: 0.1 g/mL, clear, colorless
pka2.16(at 25℃)
form Powder or Crystals
color White to light yellow
optical activity[α]20/D +26.0±1.0°, c = 2% in 6 M HCl
Water Solubility Soluble in water. Insoluble in ethanol, ethyl ether, acetone, benzene and common neutral solvent.
Merck 14,5636
JECFA Number1439
BRN 1722531
Stability:Stable. Incompatible with strong oxidizing agents.
InChIKeyKDXKERNSBIXSRK-YFKPBYRVSA-N
CAS DataBase Reference56-87-1(CAS DataBase Reference)
NIST Chemistry ReferenceLysine(56-87-1)
EPA Substance Registry SystemL-Lysine(56-87-1)
Safety Information
Hazard Codes Xi
Safety Statements 24/25
WGK Germany 3
RTECS OL5540000
TSCA Yes
HS Code 29224110
Hazardous Substances Data56-87-1(Hazardous Substances Data)
MSDS Information
ProviderLanguage
L-Lysine English
SigmaAldrich English
L-Lysine Usage And Synthesis
DescriptionSee ι-LYSINE MONOCHLORIDE.
Chemical PropertiesL-Lysine is an essential amino acid (a protein building block) that cannot be produced by the body from other nutri ents. It helps ensure adequate absorption of calcium and the formation of collagen for bone, cartilage and connective tissue. This compound is odorless.
Chemical PropertiesWhite to pale yellow crystalline powder
OccurrenceSome natural food sources for l-lysine include lima beans, kidney beans, potatoes, corn, red meat, fish and milk.
UsesEssential amino acid for human development. Lysine residues are useful in many cellular processes, due to their ability to accept a wide variety of post-translational modifications.
UsesA moderate serotonin antagonist and essential amino acid.
Useslysine is a skin-conditioning amino acid.
DefinitionChEBI: An L-alpha-amino acid; the L-isomer of lysine.
PreparationProduced by fermentation. Also produced by use of continuous ion exchange technology.
Biotechnological ProductionC. glutamicum and, to a lesser extent, E. coli are the main organisms used today for industrial L-lysine production. The first L-producing strains based on C. glutamicum were reported in 1961, and those based on E. coli in 1995. The advantages of using E. coli versus C. glutamicum include the achievement of higher growth rates at higher fermentation temperatures. The formation of lysine is highly influenced by two enzymes, aspartate kinase (AK) and homoserine dehydrogenase (HDH). AK converts aspartate into aspartate semialdehyde, and is highly feedback-inhibited by lysine and threonine. HDH converts aspartate semialdehyde into homoserine, which is an intermediate for the biosynthesis of threonine, methionine, and isoleucine. L-Lysine–producing strains therefore often contain a deregulated AK and/or a reduced activity HDH. Despite the improvement of the flux from aspartate towards lysine, the availability of key metabolites from the central metabolic pathways is also essential. Here the formation of oxaloacetate directly from phosphoenol pyruvate or via pyruvate is essential for the carbon yield as some unnecessary cycles are included. For example, inactivation of the enzyme phosphoenol pyruvate carboxykinase, which catalyzes the reverse reaction from oxaloacetate to phosphoenol pyruvate gave an improvement in lysine formation. By overexpression of pyruvate carboxylase, the conversion yield of glucose to lysine could be increased by 50 %. With a synthetic lysine hyperproducing strain, containing 12 defined modifications from the wild type, a carbon yield of 0.55 g/g and a product titer of 120 g/L over 30 h fermentation could be obtained.
Today, however, the main commercial process for L-lysine remains the fermentation of C. glutamicum. This is performed in fed-batch mode in large-scale fermenters of up to 500 m3 volume, with production capacities in excess of 100,000 tonnes. The commercial manufacturing process has been comprehensively described by Pfefferle.
Aroma threshold valuesDetection: 500 ppm
Safety ProfileAn experimental teratogen. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of NOx.
Purification MethodsCrystallise L-lysine from aqueous EtOH. [Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 pp 2097-2122 1961, Kearley & Ingersoll J Am Chem Soc 73 5783 1951, Beilstein 4 IV 2717.]
Tag:L-Lysine(56-87-1) Related Product Information
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