|
| L-Cysteine HCL anhydrous |
|
?Product No.?:SGP-B-02
?CAS No.?:52-89-1
?Structural Formula?:C 3 H 7 NO 2 S HCL H 2 O
?Molecular weight?:175.63
?Description? :White crystals or crystalline powder, Having a strong acid and sulfite taste without funk.
?Packing? :25KG/ Paper drum
CERTIFICATE OF ANALYSIS
|
Product: L- Cysteine HCL Anhydrous CAS No:(52-89-1)
Lot NO.: 080320 Date: March 21, 2008 |
|
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 |
Conclusion: The products conform to the AJI92 standard.
|
|
|
| |
|
|
|
 |
| |
 |
| |
Room 1003, Unit 1, Block A, Tongcheng Plaza, No.538 Jianshe Ave., Wuhan, China 430022
Tel: +86-27 - 8549 0678/
8549 1618/
8549 1718
Fax: +86-027-85491717
|
|
