Specification\Name

Hyaluronic Acid ( Eye drop grade )

Characters

White hygroscopic powder or granule

Hyaluronic Acid (dry basis)

90%-105%

Glucuronic acid

≥45.0%

PH(0.1% Water Solution)

6.0-7.5

Molecular Weight

(0.8-2.0)*106

Intrinsic viscosity

≥1600（on the dries basis ）

Residue on Ignition

≤20%

Protein

≤0.1%

Transparency (0.1% Solution)

≥99%

Loss on drying

≤8.0%

Heavy metals (as Pb)

≤ 20ppm

Arsenic

≤2ppm

Bacteria Endotoxin

≤0.5 EU/mg

Hemolysis

Negative

Viable Hemolytical Streptococci

Negative

Bacteria count

≤10CFU/g

Mold & Yeast

≤10CFU/g

Pseudomonas aeruginosa

Negative

Staphylococcus aureus

Negative

Packing

According to the request of the customers

Storage

Stored in an airtight container at 2-8 oC

Validity

Two years