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Appearance White crystalline powder
Specific optical rotation, [a]D200 +14.0o~+15.50o
Loss on Drying, % ≤0.20
Heavy metals, % ≤0.015
Chloride, % ≤0.02
Iron (Fe), % ≤0.02
Sulfate (SO4), % ≤0.02
Residue on Ignition, % ≤0.10
Chromatographic purity, %
Single impurity ≤0.50
Total impurity ≤2.00
Assay, % 98.50~101.00
1, Biochemical reagents and food additives.
2, Nutritional supplements, as a nutritional supplement in cosmetics.
3 Can be used for biochemical and nutritional research, but also can be used as raw materials for synthesis of serine.