D-Valine CAS:640-68-6 98.5%～101.0%
|
Solubility in 3M-HCl |
Colorless & clear (c=5) |
|
Specific rotation [α]D20 |
-26.5°～-29.0°(c= 8, 6M-HCl) |
|
Loss on drying |
Not more than 0.3% |
|
Residue on ignition (as sulfate) |
Not more than 0.1% |
|
Chloride (Cl) |
Not more than 0.02% |
|
Sulfate (SO4) |
Not more than 0.03% |
|
Heavy metals (as Pb) |
Not more than 10ppm |
|
Iron (Fe) |
Not more than 10ppm |
|
Ammonium (NH4) |
Not more than 0.02% |
|
Arsenic (As2O3) |
Not more than 1ppm |
|
Other amino acids |
Not detected by T.L.C.(The spotted amount, 20μg) |
|
Assay |
98.5%～101.0% |
|
L-Isomer |
Not more than 0.5% |
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