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L(+)-Histidine monohydrochloride monohydrate 98%
 
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L(+)-Histidine monohydrochloride monohydrate 98%
 

 

  • Environmentally Preferable:

 

 

  • Appearance:
    White Crystalline powder or crystals
  • Infrared spectrum:
    Conforms
  • Loss on drying:
    7 % to 10 % (3 h) (145 to 150°C)
  • Sulfated ash:
    ≤0.1 %
  • pH:
    3 to 5 (2.5 % at 25°C)
  • Specific optical rotation:
    +9.2° to +10.6° (20°C, 589 nm) (c=11, 6 N HCl) (On anhydrous substance)
  • Titration with NaOH:
    ≥97.5 % (On anhydrous substance)
  • Sulfate (SO4):
    ≤300 ppm
  • Ammonium (NH4):
    ≤200 ppm
  • Iron (Fe):
    ≤10 ppm
  • Heavy metals (as Pb):
    ≤10 ppm
  • Other amino acids:
    ≤0.5 % (TLC)