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L(+)-Cysteine hydrochloride monohydrate 98.5-101.5% (dry basis) USP, Multi-Compendial, J.T.Baker®
L(+)-Cysteine hydrochloride monohydrate 98.5-101.5% (dry basis) USP, Multi-Compendial, J.T.Baker®
Supplier:  Avantor
MOC:  Regulated
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L(+)-Cysteine hydrochloride monohydrate 98.5-101.5% (dry basis) USP, Multi-Compendial, J.T.Baker®
Supplier:  Avantor
MOC:  Regulated
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Specification Test Results

  • USP - Assay (C₃H₇NO₂S·HCl) (dried basis):
    98.5 - 101.5 %
  • USP - Identification:
    Passes Test
  • USP - Specific Rotation [Å]²⁵ ^D (+):
    5.7 - 6.8 Degree
  • USP - Loss on Drying:
    8.0 - 12.0 %
  • USP - Residue on Ignition:
    ≤0.1 %
  • 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 (C₃H₇NO₂S·HCl) (dried basis):
    98.5 - 101.0 %
  • EP/BP - Identification A:
    Passes Test
  • EP/BP - Identification B:
    Passes Test
  • EP/BP - Identification E:
    Passes Test
  • EP/BP - Appearance of Solution:
    Passes Test
  • EP/BP - Specific Rotation [Å]²º^D (+):
    5.5 - 7.0 Degree
  • EP/BP - Ninhydrin-Positive Substances - Impurity A:
    ≤0.5 %
  • EP/BP-Ninhydrin-Positive Substances-Each:
    ≤0.2 %
  • EP/BP-Ninhydrin-Positive Substances-Total Impurities:
    ≤1.0 %
  • EP/BP - Sulfate (SO₄):
    ≤300 ppm
  • EP/BP - Ammonium (NH₄):
    ≤0.02 %
  • EP/BP - Iron (Fe):
    ≤20 ppm
  • EP/BP - Loss on Drying:
    8.0 - 12.0 %
  • EP/BP - Ash (sulfated):
    ≤0.1 %

Specification Test Results

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