Test Items

SpecificationAJI92

Description

White crystals or crystalline powder

Identification

Conforms

Specific rotation [α]20D

-74.0°～-77.0°

Transmittance

≥95.0%

Chloride (Cl)

≤0.02%

Ammonium (NH4)

≤0.02%

Sulfate (SO4)

≤0.02%

Iron (Fe)

≤10 ppm

Heavy metals (Pb)

≤10 ppm

Arsenic (As2O3)

≤1 ppm

Other Amino Acids

chromatographically not detectable

Loss on drying

≤0.20%

Residue on ignition

≤0.10%

Assay

98.5-101.0%

pH

5.0～6.5