Appearance White or almost white crystalline powder
Clarity Clear
Specific optical rotatio +23˚ ~+29˚
Water content 5.0% max
PH(250mg/ml in water) 4.5-7.0
Total Ash 0.1%max
PH 1.0--3.0
Calcium <500ppm
Chloride <500ppm
Sulfate <500ppm
Iron <100ppm
Reducing metals <0.2%
Heay metals <10ppm
Assay 98.0%--102.0%
Total bacteria count <100Col/g
Endotoxin level 10EU/g
Salmonella Negative
E.Coli Negative
Pseudomonas aeruginosa Negative