CAS No.: | 9004-61-9 |
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Formula: | C14h22nnao11 |
EINECS: | 232-678-0 |
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Product name | Sodium hyaluronate cosmetic grade | |
Product description | White or almost white powder or granule | |
Product Benefits |
High molecular weight: forming a dense protective film, long-lasting moisturizing; good recovering effect; Medium molecular weight: good moisturizing and lubricity effect, slow release, stable emulsification effect; Low molecular weight :skin nutrition effect and lasting moisture effect; Oligo : percutaneous absorption, deep moisturizing, anti-aging and recovery effect after sunburn. |
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Product specification |
Solubility |
Sparingly soluble or soluble in water,practically insoluble in acetone and in anhydrous ethanol |
Identification |
A. Infrared absorption spectrophotometry | |
B. It gives reaction(a)of sodium | ||
Sodium Hyaluronate | ≥ 95% | |
Appearance of Solution | A600nm≤ 0.01 | |
Nucleic Acids | A260nm≤ 0.5 | |
pH (0.5% aq. sol., 25ºC) | 5.0-8.5 | |
Molecular Weight | 3,000-3,000,000 Da | |
Intrinsic viscosity | 0.19-40.59dL/g | |
Protein | ≤0.1% | |
Loss on drying | ≤10.0% | |
Chlorides | ≤ 0.5% | |
Iron | ≤ 80ppm | |
TAMC | ≤100CFU/g | |
Staphylococcus aureus | Negative/g | |
Pseudomonas aeruginosa | Negative/g | |
Storage Conditions | Temperature at 2-10ºC cool and dry place | |
Packing | According to customer requirements | |
Shelf life | Two years (unopened packaging) |