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L(+)-Histidine 98.5-101.5% (dried basis) USP, FCC, Multi-Compendial, Macron Fine Chemicals™
 :  MACRON AVANTOR BRAND
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L(+)-Histidine 98.5-101.5% (dried basis) USP, FCC, Multi-Compendial, Macron Fine Chemicals™
 :  MACRON AVANTOR BRAND
 

 

  • USP - Assay (C₆H₉N₃O₂) (dried basis):
    98.5 - 101.5 %
  • USP - Identification:
    Passes Test
  • USP - Specific Rotation [Å]²⁵ ^D (+):
    12.6 - 14.0 Degree
  • USP - pH:
    7.0 - 8.5
  • USP - Loss on Drying at 105°C:
    ≤ 0.2 %
  • USP - Residue on Ignition:
    ≤ 0.4 %
  • USP - Chloride (Cl):
    ≤ 0.05 %
  • USP - Sulfate (SO₄):
    ≤ 0.03 %
  • USP - Iron (Fe):
    ≤ 0.003 %
  • USP - Related Compounds - Individual Impurities:
    ≤ 0.5 %
  • USP - Related Compounds - Total Impurities:
    ≤ 2.0 %
  • EP/BP - Assay (C₆H₉N₃O₂) (dried basis):
    98.5 - 101.0 %
  • EP/BP - Identification A:
    Passes Test
  • EP/BP - Identification B:
    Passes Test
  • EP/BP - Appearance of Solution:
    Passes Test
  • EP/BP - Specific Rotation [Å]²º^D (+):
    11.4 - 12.4 Degree
  • EP/BP-Ninhydrin-Positive Substances-Each:
    ≤ 0.2 %
  • EP/BP-Ninhydrin-Positive Substances-Total Impurities:
    ≤ 0.5 %
  • EP/BP - Chloride (Cl):
    ≤ 200 ppm
  • EP/BP - Sulfate (SO₄):
    ≤ 300 ppm
  • EP/BP - Ammonium (NH₄):
    ≤ 0.02 %
  • EP/BP - Iron (Fe):
    ≤ 10 ppm
  • EP/BP - Loss on Drying:
    ≤ 0.5 %
  • EP/BP - Ash (sulfated):
    ≤ 0.1 %
  • JP - Assay (C6H9N3O2) (dried basis):
    99.0 - 101.0 %
  • JP - Ammonium (NH₄):
    ≤ 0.02 %
  • JP - Chloride (Cl):
    ≤ 0.021 %
  • JP - Clarity and Color of Solution:
    Passes Test
  • JP - Heavy Metals (as Pb):
    ≤ 10 ppm
  • JP - Iron (Fe):
    ≤ 10 ppm
  • JP - Identification:
    Passes Test
  • JP - Loss on Drying at 105°C:
    ≤ 0.30 %
  • JP- Optical Rotation [Å]²º^D (+):
    11.8 - 12.8 Degree
  • JP - Related Substances:
    Passes Test
  • JP - pH:
    7.0 - 8.5
  • JP - Residue on Ignition:
    ≤ 0.10 %
  • JP - Sulfate (SO₄):
    ≤ 0.028 %