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)
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ITEMS
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CRITERIA
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Appearance
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White or almost white powder;
Odorless,slightly sweet;
Freely soluble in water,soluble in ethanol,almost insoluble in acetone.
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Water solution pH
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pH5.0~8.5
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Light-absorbing impurities
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Between 230 and 350 nm,the absorbance is NMT 0.5; and between 350 and 660 nm, the absorbance is NMT 0.5.
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Water
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≤10.0%
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Gamma Cyclodextrin
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≤1.5%
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Residue on ignition
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≤0.2%
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Heavy Metal
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≤10ppm
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Propylene glycol
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≤0.5%
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Assay
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≥95%
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Hydroxypropoxyl content
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17.5%~29.1%
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The total aerobic microbial count
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≤1000cfu/g
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The total combined moulds and yeasts count
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≤100cfu/g
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Escherichia coli
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Absence
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Bacterial Endotoxins Test
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According to preparation needs
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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
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