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Sodium Hyaluronate Hyaluronic acid sodium salt CAS:9067-32-7
Product Name: Sodium Hyaluronate
Identification
Synonyms Hyaluronic acid sodium salt
Molecular Formula (C14H20NO11Na)n
Molecular Weight (401.30)n
CAS Number 9067-32-7
Properties
Appearance White or almost white powder
Solubility Soluble in water
Stability Stable under ordinary conditions
Items | Specifications |
Characters | White or almost white powder |
Glucuronic acid | ≥44.5% |
Sodium hyaluronate | ≥92.0% |
Ph(0.5% aq,sol.,25ºC) | 5.0-8.5 |
Absorbance (0.5%, aq.sol.25ºC) | A280nm≤0.25 |
Appearance of solution (0.5% aq.sol.25ºC) | T550nm≥99.0% |
Loss on drying | ≤10.0% |
Molecular weight | ≥2,000,000 |
Intrinsic viscosity | Measured value |
Kinematic viscosity | Measured value |
Protein | ≤0.1% |
Heavy metal (as pb) | ≤20ppm |
Bacteria counts | ≤100cfu/g |
Mold & yeast | ≤50cfu/g |
Staphylococcus aureus | Negative |
Pseudomonas aeruginosa | Negative |
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