Details:
β-Cyclodextrin is a cyclic heptamer composed of seven glucose units joined "head-to-tail" by alpha-1.4 links. It is produced by the action of the enzyme, cyclodextrin glycosyl transferase (CGT)，on hydrolyzed starch syrups. And it is white powder and there is a cavity in its molecule which can form inclusion compounds with a range of molecules. The solubility degree of Beta-cyclodextrin in water is 1.85 g/100ml @ 25°C, melting point is about 260℃, internal diameter is 0.7-0.8nm.
CAS : 7585-39-9
Molecular Formula: C42H70O35
Molecular Weight: 1134.98
Specifications
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Items
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Index
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Appearance
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White powder, Odorless, Minor sweet
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Total sugar
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≥ 86.5%
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Assay
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≥ 98.0%
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Moisture content
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≤12.0%
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Residue on ignition
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≤0.1%
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Specific rotation
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+159°~+164°
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pH
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5.0 – 8.0
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Color and clarity of solution
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Clear and colorless
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Reductive sugar
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≤0.2%
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|
Chloride
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≤0.018%
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|
Heavy metal
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≤0.0002%
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|
As
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≤0.0001%
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|
Total bacteria count
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≤1000pcs/g
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|
Moulds and yeasts
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≤200pcs/g
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|
Escherichia coli
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Negative
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All Cyclodextrins and Derivatives
