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β-Cyclodextrin (236605)
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

Items

Index

Appearance

White powder, Odorless, Minor sweet

Total sugar

≥ 86.5%

Assay

≥ 98.0%

Moisture content

≤12.0%

Residue on ignition

≤0.1%

Specific rotation

+159°~+164°

pH

5.0 – 8.0

Color and clarity of solution

Clear and colorless

Reductive sugar

≤0.2%

Chloride

≤0.018%

Heavy metal

≤0.0002%

As

≤0.0001%

Total bacteria count

≤1000pcs/g

Moulds and yeasts

≤200pcs/g

Escherichia coli

Negative

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All Cyclodextrins and Derivatives


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