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1 Kilogram |
Negotiable |
56-41-7 L-Alanine Alanine
Item |
AJI92 |
USP32 |
Assay |
99.0~101.0% |
98.5~101.5% |
pH |
5.7~6.7 |
5.5~7.0 |
Specific rotation[a]D020 | +14.0°~+15.0° | |
[a]D025 |
|
+13.7°~+15.1° |
Transmittance(T430) |
clear & colorless |
Confirm |
Chloride(Cl) |
≤0.02% |
≤0.05% |
Ammonium(NH4) |
|
|
Sulfate(SO4) |
≤0.02% |
≤0.03% |
Iron(Fe) |
≤10ppm |
≤30ppm |
Heavy metals(Pb) |
≤10ppm |
≤15ppm |
Arsenic |
≤1ppm(As2O3) |
|
Other amino acids |
conforms |
|
Loss on drying |
≤0.20% |
≤0.20% |
Residue on ignition |
≤0.10% |
≤0.15% |
Organic volatile impurities |
|
meets the requirements |
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