L-Cysteine HCL







L-Cysteine HCL

L-Cysteine HCL

L-Cysteine

L-Cysteine HCL ANHY AJI92

L-Cysteine HCL MONO AJI92

Infrared Absorptions

Meets the requirements

Meets the requirements

White crystals or crystalline powder

Meets the requirements

Meets the requirements

Specific Rotation [α]D20

+5.6°to +8.9°

+5.5°to +7.0°

State of solution
(Transmittance)

Clear and colorless
not less than 98.0%

clear and colorless
not less than 98.0%

Chloride (Cl)

 

19.89 to 20.29%

Ammonium(NH4+)

 

Not more than 0.02%

Sulfate (SO42- )

 

Not more than 0.02%

Iron (Fe)

 

Not more than 10ppm

Heavy metals (Pb)

Not more than 10ppm

Not more than 10ppm

Arsenic (As2O3)

Not more than 1PPM

Not more than 1ppm

Other amino acids

Chromatographically
not detectable

Chromatographically
Not detectable

Loss on drying

Not more than 1.0%

8.5 to 12.0%

Residue on ignition
(sulfated)

Not more than 0.1%

Not more than 0.1%

Assay

98.0% to 102.0%

99.0% to 100.5%

PH

1.5 to 2.0

1.5 to 2.0

Pyrogen

 

No pyrogen