ITEMS

SPECIFICATION

Description

A White Crystalline Powder, Very Soluble in Water, Sparingly Soluble in Methanol, Practically Insoluble in Acetone and in Ethanol.

Identification

Meets the Requirements

Specific Rotation

-43.0°~ -47.0°

Test Solution:10mg/ml in Zinc Acetate

Water

8.0% ~ 9.5%

Sulphated Ash

≤0.1%

Related Substances (HPLC)

R.S.S.-Isomer

≤0.3%

N2-(1-Carboxy-3-Phenylpropyl)-L-Lysine

≤0.3%

Cyclohexylanalogue

≤0.3%

Any unknown Impurity

≤0.1%

All Impurities apart form R.S.S.-Isomer

≤0.5%

Assay

98.5% ~ 101.5%