产品描述

Appearance White crystals or crystalline Powder Specific rotation +38.6-+41.5 PH 5.5-7.0 Loss on drying =<0.3% Heavy metals(Pb) =<20ppm Content 98.5~101.0% Iron(Fe) =<20ppm Arsenic(As2O3) =<1ppm Lead =<10ppm Other Amino Acids Chromatographically not detectable Residue on ignition (Sulfated) =<0.2% Organic Volatile impurities Meets the requirements of pharmacopoeis