Lysine (abbreviated as Lys or K),[1] encoded by the codons AAA and AAG) is an α-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated −NH3+ form under biological conditions), an α-carboxylic acid group (which is in the deprotonated −COO− form under biological conditions), and a side chain lysyl ((CH2)4NH2), classifying it as a charged(at physiological pH), aliphatic amino acid. It is essential in humans, meaning the body cannot synthesize it and thus it must be obtained from the diet.

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Product specifications

  • Appearance: White Crystalline Powder
  • Country of Origin: China
  • Assay: > 98,5%
  • Specific Rotation: + 14,9° –  + 17,3°
  • Residue on Ignition: < 0,4%
  • Loss on Drying: < 0,20%
  • pH: 5,5 – 7,0

Chemical Composition Analysis

  • Chloride: < 0,05%
  • Sulphate: < 0,03%
  • Heavy Metals: < 15 ppm
  • Iron (Fe): < 0,003%
  • Total Plate Count: < 1000 CFU per gr
  • Yeast and Moulds: < 100 CFU per gr
  • E. Coli: Negative
  • Salmonella: Negative
  • Staphylococcus Aureus: Negative 

Packaging specifications

  • Packaging: Cardboard drum containing double plastic bags and one aluminium foil bag. Well-closed away from moisture.
  • Net weight per drum: 25 kg
  • Storage: Store in a cool & dry area, keep away from the direct light and heat.
  • Shelf Life: Two years under well storage situation and stored away from direct sun light.


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