CAS NO.: 1119-34-2
Test Items | Limit |
Molecular Structure | |
Identification[α]20D | conforms 20 |
Specific rotation | +22.1o to +22.9o |
State of solution | clear and colorless not less than 98.0% |
Chloride (Cl) | 16.58 to 17.00% |
Ammonium (NH4) | not more than 0.02% |
Sulfate (SO4) | not more than 0.020% |
Iron (Fe) | not more than 10ppm |
Heavy metals (Pb) | not more than 10ppm |
Arsenic (As2O3) | not more than 1ppm |
Other amino acids | conforms |
Loss on drying | not more than 0.20% |
Residue on ignition (sulfated) | not more than 0.10% |
Assay | 99.0% to 101.0% |
pH | 4.7 to 6.2 |