?Product No.?:SGP-B-01
?CAS No.?:7048-4-6
?Structural Formula? :C3H7NO2S.HCL.H2O
?Molecular weight?:175.64
?Description? :White crystals or crystalline powder, Having a strong acid taste, could be dissolved in water.
?Packing? :25KG/ Paper drum
CERTIFICATE OF ANALYSIS
|
Product: L- Cysteine HCL MONO CAS No:(7048-4-6)
Batch No.: 080901 Date: Sep. 2, 2008 |
|
Item |
Specification(AJI92) |
Result |
|
Specific rotation[a]D20 |
+5.5 to +7.0° |
+6.12° |
|
State of solution
( Transmittance) |
Clear and colorless
Not less than 98.0% |
99.0% |
|
Chloride(Cl) |
19.89 to 20.29% |
20.13% |
|
Ammonium(NH4) |
=0.02% |
= 0.019% |
|
Sulfate (SO4) |
= 0.020% |
= 0.019% |
|
Iron(Fe) |
= 10ppm |
= 2ppm |
|
Heavy metals(Pb) |
= 10ppm |
= 3ppm |
|
Arsenic(as As2o3) |
= 1ppm |
= 1ppm |
|
other amino acids |
Chromatographically
Not detectable |
Conforms |
|
Loss on drying |
8.50 to 12.00% |
10.18% |
|
Residue on ignition(sulfated) |
= 0.1% |
0.05% |
|
Assay |
98% to 101.5% |
99.9% |
|
PH |
1.5 to 2.0 |
1.6 |
Conclusion: The products conform to the AJI92 standard.
