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L-Phenylalanine 98.5-101.0%, meets analytical specification of USP
L-Phenylalanine 98.5-101.0%, meets analytical specification of USP
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L-Phenylalanine 98.5-101.0%, meets analytical specification of USP

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Specification Test Results

  • Appearance:
    Colorless to white Powder or crystals
  • Infrared spectrum:
    Conforms
  • Loss on drying:
    ≤0.3 % (105°C, 3 hrs)
  • Heavy metals:
    ≤15 ppm
  • Sulfated ash:
    ≤0.4 %
  • Related substances:
    ≤2.0 % (total impurities)
  • pH:
    5.4 to 6.0 (1 % solution)
  • Specific optical rotation:
    -32.7° to -34.7° (20°C, 589 nm) (2%,water)
  • Titration with HClO4:
    98.5 to 101.5 % (On dried base)
  • Chloride (Cl):
    ≤0.05 %
  • Sulfate (SO4):
    ≤0.03 %
  • Iron (Fe):
    ≤0.003 %

Specification Test Results