Hyaluronic acid (Eye-drop Grade)

CHARACTERISTICS:
White or almost white, very hygroscopic grain or powder, without odor, turn to
Clear solution when dissolved in water, insoluble in ethanol, acetone and
Aether

CExamination:
pH; 6.9
Molecular weight: >= 1.72*1000000
Protein: <=0.07%
Nitrogen: 2.1%
Transparency: >=95.4%
Loss on drying: <=6.8%
Heavy metals: <=10ppm
Microbial Examination:
Bacteria counts <=10CFU/g
Mold & Yeast <=10CFU/g
Endotoxin 0.4EU/mg
Staphylococcus aureus negative
Pseudomonas aeruginosa negative
Shelf Life: 24months