L-Leucine
|
|
C6H13NO2
131.17
L-Leucine |
L-Leucine
[61-90-5] |
» Leucine
contains not less than 98.5 percent and not more than 101.5
percent of C6H13NO2, as L-Leucine, calculated on the dried basis. |
Packaging and storage— Preserve in well-closed containers.
|
Identification: Infrared
Absorption. |
Specific rotation |
between +14.9°and
+17.3° |
pH |
between 5.5and
7.0 |
Loss on drying |
not more than
0.2% |
Residue on ignition |
not more than 0.4% |
Chloride |
0.05% |
Sulfate |
0.03% |
Iron |
0.003% |
Heavy metals |
0.0015% |
Chromatographic purity |
not
more than 0.5% (individual impurity)
not more than 2.0% (total impurity) |
Organic volatile impurities |
meets the requirements |
Assay |
not
less than 98.5 percent and
not more than 101.5 percent
of C9H11NO3 |