Complaint
| Item | Standard | Item | Standard |
| Appearance | White powder | Moisture | ≤10% |
| Appearance of Solution (Absorbance) | A600nm ≤0.01 | Chlorides | ≤0.5% |
| Nucleic Acid | A260nm ≤0.5 | Iron (as Fe) | ≤80ppm |
| Sodium Hyaluronate | 95.0%~105.0% | Heavy Metals | ≤10ppm |
| Molecular Weight | 1.0~2.5Million Da or Customized | Residual Solvents (Ethanol) | ≤0.5% |
| PH | 6.0~7.5 | Bacterial Endotoxins | <0.5 IU/mg |
| Protein | ≤0.1% | Bacteria Count | <100 cfu/g |
