|
Description: |
N-Acetyl-L-Cysteine |
|
CAS NO.: |
616-91-1 |
|
Add time: |
2008-1-3 15:39:29 |
|
N-Acetyl-L-Cysteine | |
|
Item |
Specification |
|
Appearance |
White crystals or crystalline powder |
|
Specific Rotation[α]D20 |
+21.3° to +27.0° |
|
State of solution |
Clear and colorless |
|
Not less than 98.0% | |
|
Chloride (Cl) |
Not more than 0.04% |
|
Ammonium (NH4) |
Not more than 0.02% |
|
Sulfate (SO4) |
Not more than 0.030% |
|
Iron (Fe) |
Not more than 20ppm |
|
Heavy Metals (Pb) |
Not more than 10ppm |
|
Aresenic (As2O3) |
Not more than 1ppm |
|
Other amino aicds |
Chromatographically not detectable |
|
Loss on drying |
Not more than 0.5% |
|
Residue on ignition |
Not more than 0.20% |
|
Assay |
98.5% to 101.0% |
|
pH |
2.0 to 2.8 |
|
Melting point |
106° to 110° |
Pre：N-Acetyl-DL-Methionine
Next：N-Acetyl-L-Leucine
