Item

Standard

Appearance

White to off-white powder

Specific rotation[α]20/D
(C=8 in 6N HCl)

-20.7 to -21.5 Degree

State of solution
(Transmittance)

Clear and colorless
Not less than 95.0%

Chloride (Cl)

19.12% to 19.51%

Heavy metal (Pb)

Not more than 10ppm

Arsenic (As2O3)

Not more than 1ppm

Other Amino Acids

Chromatographically
Not detectable

Enantiomeric purity

Not more than 0.5%

Loss on drying

Not more than 0.40%

Residue on ignition (sulfated)

Not more than 0.10%

Assay

98.5% to 100.5%