|
Description: |
N-Acetyl-L-Tyrosine |
|
CAS NO.: |
537-55-3 |
|
Add time: |
2008-1-3 15:40:48 |
|
N-Acetyl-L-Tyrosine | |
|
Item |
Specification |
|
Appearance |
White crystals or crystalline powder |
|
Specific Rotation[α]D20 |
+46.5° to +49.0° |
|
State of solution |
Clear and colorless |
|
Not less than 96.0% | |
|
Chloride (Cl) |
Not more than 0.020% |
|
Ammonium (NH4) |
Not more than 0.02% |
|
Sulfate (SO4) |
Not more than 0.020% |
|
Iron (Fe) |
Not more than 30ppm |
|
Heavy Metals (Pb) |
Not more than 10ppm |
|
Aresenic (As2O3) |
Not more than 2ppm |
|
Loss on drying |
Not more than 0.5% |
|
Residue on ignition |
Not more than 0.1% |
|
Assay |
99.0% to 101.0% |
|
Tyrosine |
Not more than 1.0% |
|
pH |
2.0 to 3.0 |
