Test Items

Standard

Result

Appearance

White powder

White powder

Hyaluronic Acid

≥95%

96.8%

Glucuronic acid

≥42%

42.52%

Molecular weight

(0.8—2.0) X 106

0.87 X 106

PH

6.0-7.5

6.51

Solution transmittance

98.5%

98.6%

Loss on drying

<10%

7.0%

Residue on ignition

≤20%

Complies

Protein

≤0.1%

0.05%

Heavy metal

<20ppm

Complies

Bacterial counts

<100cfu/g

Complies

Mold and Yeast

<100cfu/g

Complies

Staphylococcus aureus

Negative 

Complies

Chlorop seu domonas

Negative 

Complies