
Standard Member
Name: hydroxypropyl gamma cyclodextrin
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Another name: hydroxypropyl - γ - cyclodextrin; hydroxypropyl - gamma - cyclodextrin;
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English Name: hydroxyl gamma cyclodextrin; hydroxyl - γ - cyclodextrin;
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Abbreviation: HP - γ - CD
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CAS NO. : 128446-34-4
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Molecular formula: c48h80-no40. (c3h7o)n
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Molecular weight: 1297.2 + n. (58.1)

| ITEMS | CRITERIA |
| Appearance | White or almost white powder;Odorless,slightly sweet;Freely soluble in water,soluble in ethanol,almost insoluble in acetone. |
| Water solution pH | pH5.0~8.5 |
| Light-absorbing impurities | Between 230 and 350 nm,the absorbance is NMT 0.5; and between 350 and 660 nm, the absorbance is NMT 0.5. |
| Water | ≤10.0% |
| Gamma Cyclodextrin | ≤1.5% |
| Residue on ignition | ≤0.2% |
| Heavy Metal | ≤10ppm |
| Propylene glycol | ≤0.5% |
| Assay | ≥95% |
| Hydroxypropoxyl content | 17.5%~29.1% |
| The total aerobic microbial count | ≤1000cfu/g |
| The total combined moulds and yeasts count | ≤100cfu/g |
| Escherichia coli | Absence |
| Bacterial Endotoxins Test | According to preparation needs |
Characteristics of hydroxypropyl gamma cyclodextrin:
Hydroxypropyl gamma cyclodextrin dissolves large molecules, such as cholesterol, for cell culture. Hydroxypropyl gamma cyclodextrin is similar to betacyclodextrin, but can dissolve larger molecules.
Application of hydroxypropyl gamma cyclodextrin:
The water solubility of hydroxypropyl - γ - cyclodextrin was further increased to 80g / 100ml (25 ℃). At the same time, the hydroxypropyl - γ - cyclodextrin was no longer a single pure product, but a mixture of multiple substitutions. It was not easy to form inclusion complex crystal precipitation when it was combined with guest molecules. In general, hydroxypropyl - γ - cyclodextrin had higher water solubility and stronger anti-oxidation ability The ability of crystallization. The solubility of γ - cyclodextrin in water is 23.2g/100ml (25 ℃), and its application is limited in some cases.
It is suggested that it can be used in high value-added products, such as medicine, health care products, cosmetics and other special materials, or the treatment of hydroxypropyl - β - cyclodextrin.
Packaging of hydroxypropyl gamma cyclodextrin:
Package specification: 10g / 20g / 50g / 100g / 500g / 1kg / 2kg / 10kg
Packing form: bottle, carton, cardboard barrel