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L-Lysine hydrochloride

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L-Lysine hydrochloride Basic information
L-Lysine hydrochloride Chemical Properties
  • Melting point:263 °C (dec.)(lit.)
  • alpha 21 º (c=8, 6N HCl)
  • Density 1.28 g/cm3 (20℃)
  • vapor pressure <1 Pa (20 °C)
  • FEMA 3847 | L-LYSINE
  • storage temp. 2-8°C
  • solubility H2O: 100 mg/mL
  • form powder
  • color White to Off-white
  • PH5.5-6.0 (100g/l, H2O, 20℃)
  • optical activity[α]20/D +20.5±0.5°, c = 5% in 5 M HCl
  • Water Solubility 65 g/100 mL (20 ºC)
  • λmaxλ: 260 nm Amax: 0.1
    λ: 280 nm Amax: 0.1
  • Merck 14,5636
  • BRN 3563889
  • Stability:Stable. Incompatible with strong oxidizing agents.
  • CAS DataBase Reference657-27-2(CAS DataBase Reference)
  • EPA Substance Registry SystemLysine hydrochloride (657-27-2)
Safety Information
  • Hazard Codes 
  • WGK Germany 2
MSDS
L-Lysine hydrochloride Usage And Synthesis
  • DescriptionA white or nearly white, practically odorless, free-flowing, crys talline powder. It is freely soluble in water, but is almost insoluble in alcohol and in ether. It melts at about 260°C with decomposition.
  • Chemical PropertiesWhite crystalline powder
  • Usesamino acid, nutrient
  • UsesL-(+)-Lysine Monohydrochloride
  • DefinitionChEBI: The hydrochloride salt of L-lysine
  • Safety ProfileiWdly toxic by ingestion. When heated to decomposition it emits very toxic fumes of HCl and NOx.
  • Purification MethodsLikely impurities are arginine, D-lysine, 2,6-diaminoheptanedioic acid and glutamic acid. Crystallise the monohydrochloride from water at pH 4-6 by adding 4 volumes of EtOH. At above 60% relative humidity it forms a dihydrate. [Birhbaum et al. J Biol Chem 194 455, 468 1952, Kearley & Ingersoll J Am Chem Soc 73 5783 1951, Beilstein 4 IV 2717.]
L-Lysine hydrochloride Preparation Products And Raw materials
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