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 Products
L-Leucine
| Test Items |
Standard |
Description |
white crystals or crystalline powder |
Identification |
infrared absorption spectrum |
Specific rotation [α]D20 |
+14.9 to +16.0° |
State of solution
(Transmittance) |
clear and colorless
not less than 98.0% |
Chloride (CI) |
not more than 0.020% |
Ammonium (NH4) |
not more than 0.02% |
Sulfate (SO4) |
not more than 0.020% |
Iron (Fe) |
not more than 10ppm |
Heavy metals (Pb) |
not more than 10ppm |
Arsenic (As2O3) |
not more than 1ppm |
Other amino acids |
conforms |
Loss on drying |
not more than 0.20% |
Residue on ignition
(sulfated) |
not more than 0.10% |
Assay |
99.0 to 100.5% |
PH |
5.5 to 6.5 |
Pyrogen |
Nonpyrogenic |
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