?Product No.?:SGP-B-07
?CAS No.?:923-32-0SGP-B-07
?Structural Formula? :C6H12N2O4S2
?Molecular weight?:240.3
?Description? :white crystals or crystalline powder, Having a strong acid taste, could be dissolved in water.
?Packing? :25KG/ Paper drum
CERTIFICATE OF ANALYSIS
|
Product: DL- Cysteine CAS NO.:(923-32-0)
Lot NO.: 071201 Date: Dec. 20, 2008 |
|
Item |
Specification(AJI92) |
Result |
|
State of solution
( Transmittance) |
Not less than 95.0% |
99.1% |
|
Chloride(Cl) |
= 0.10% |
= 0.09% |
|
Iron(Fe) |
= 5ppm |
= 5ppm |
|
Heavy metals(Pb) |
= 10ppm |
= 9ppm |
|
Arsenic(as As2o3) |
= 1ppm |
= 1ppm |
|
other amino acids |
Conforms |
Conforms |
|
Loss on drying |
= 0.2% |
0.1% |
|
Residue on ignition
(sulfated) |
= 0.1% |
0.05% |
|
Assay |
98% to 102.0% |
99.9% |
Remarks: Agree with the specification of AJI92
