|
Description: |
L-Tyrosine |
|
CAS NO.: |
60-18-4 |
|
Add time: |
2008-1-3 15:33:13 |
|
Description: |
N-Acetyl-DL-Leucine |
|
CAS NO.: |
99-15-0 |
|
Add time: |
2008-1-3 15:43:59 |
|
N-Acetyl-DL-Leucine | |
|
Item |
Specification |
|
Appearance |
White crystals or crystalline powder |
|
Specific Rotation[α]D20 |
-1° to +1° |
|
State of solution |
Clear and colorless |
|
Not less than 95.0% | |
|
Heavy Metals (Pb) |
Not more than 20ppm |
|
Aresenic (As2O3) |
Not more than 2ppm |
|
Loss on drying |
Not more than 0.5% |
|
Residue on ignition |
Not more than 0.3% |
|
Assay |
97.5% to 102.5% |
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Next：N-Acetyl-DL-Methionine
