【CAS No.】:52-8-1
【Structural Formula】:C3H7NO2SHCLH2O
【Molecular weight】:5.63
【Description】:White crystals or crystalline powder, Having a strong acid and sulfite taste without funk.
【Packing】:5KG/ Paper drum
CERTIFICATE OF ANALYSIS
|
Product: L- Cysteine HCL Anhydrous | ||
|
Item |
Specification(AJI92) |
Result |
|
Specific rotation[a]D20 |
+5.6° to +8.9° |
+6.7° |
|
State of solution ( Transmittance) |
Clear and colorless
Not less than 98.0% |
99.0% |
|
Chloride(Cl) |
22.3 to 22.6% |
22.49% |
|
Ammonium(NH4) |
≤ 0.02% |
≤ 0.02% |
|
Sulfate (SO4) |
≤ 0.020% |
≤ 0.02% |
|
Iron(Fe) |
≤ 10ppm |
≤ 5ppm |
|
Heavy metals(Pb) |
≤ 10ppm |
≤ 5ppm |
|
Arsenic(as As2o3) |
≤ 1ppm |
≤ 1ppm |
|
other amino acids |
Chromatographically
Not detectable |
Conforms |
|
Loss on drying |
≤ 1.0% |
0.5% |
|
Residue on ignition(sulfated) |
≤ 0.1% |
0.04% |
|
Assay |
98% to 102.0% |
100.2% |
|
PH |
1.5 to 2.0 |
1.7 |