L-Alanyl-Glutamine

 L-Alanyl-Glutamine is a dipeptide with a glutamine amino group joined to an alanyl residue. This amino acid improves intestinal health and enhances the immune system.

 

Description

 Product specifications

  • Appearance: White or almost White Crystalline Powder
  • Country of Origin: China
  • Assay: > 98,5%
  • Solubility: Soluble in water, insoluble in ethanol, acetone or etheylether
  • Specific Optical Rotation: +9,5° – 11,0°
  • Chromogenic Reaction: Three ketone reagent, appear blue/purple
  • HPLC: The retention time to the major peak of the sample solution corresponds to that in the chromatogram of the standard preparation.
  • IR: The sample’s IR spectrum is in accordance with the reference spectrum of L-Analyl-Glutamine R.S.
  • Solution: Clarity and Colour The solution is clear or not more opalescent than reference suspension 1, should not be deeper than yellow 1 standard solution.
  • pH: 5.0 – 6.5
  • Loss on drying: < 0,5%
  • Residue on Ignition: < 0,1%

Related Substances

  • Ring-(L-alanyl-L-glutamine): 0,04% – 0,2%
    L-Pyroglutamyl-L-Alanine: < 0,15%
  • L-Pyroglutamic Acid: < 0,05%
  • D-alanyl-L-Glutamine: < 0,05%
  • D-alanyl-L-Glutamic Acid: < 0,5%
  • Any other impurity: < 0,1%
  • Unknown total Impurities: < 0,5%
  • Chloride: < 0,02%
  • Heavy Metals: <10 ppm
  • Sulphate:< 0,02%
  • Ammonium (NH4): <  0,08%
  • Arsenic (As): < 0,0001%

Residual Solvents

  • Methanol: < 3000 ppm
  • Ethanol: < 5000 ppm
  • Tetrahydrofuran: <   720 ppm
  • Toluene: <   890 ppm
  • Bacterial Endotoxins: < 0,50 EU/mg

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: Three years under well storage situation and stored away from direct sun light.

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