Hydroxypropyl β-Cyclodextrin (242605)

$276.00
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Hydroxypropyl β-Cyclodextrin (242605)

Feature:
Hydroxypropyl beta-Cyclodextrin are purified polydisperse products resulting from the controlled reaction of propylene oxide and native beta-cyclodextrin. Hydroxypropyl beta-cyclodextrin is itself very soluble in water (greater than 500 mg/ml at room temperature compared to 18 mg/ml for beta-cyclodextrin), and is used for molecular encapsulation of a variety of sparingly water compounds to enhance the aqueous solubility of the encapsulated compound. CAS : 128446-35-5 Molecular Formula: C63H112O42

Molecular Weight:  1541.54

 Specifications:

1. Appearance: White powder

2. Assay: ≥98%

3. Loss on Drying: ≤4.5%

4. Chloride: ≤0.02%

5. Residue on Ignition: ≤1.5%

6. Heavy Metals: ≤0.0025%

7. As: ≤0.0002%

8. Degree of substitution: 4-9

9. Total bacteria count: ≤1000 pcs/g

10. Moulds and yeasts: ≤100 pcs/g

Product Codes- NCZ-2763K

α-Cyclodextrin (237605)

$168.00
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α-Cyclodextrin (237605)

Feature alpha-Cyclodextrin is a non-reducing cyclic saccharide comprised of six glucose units linked by alpha-1.4 bonds. It is produced by the action of cyclodextrin glucosyl transferase on hydrolysed starch syrups. The cavity of alpha-cyclodextrin is less than beta-cyclodextrin, so it is used to allow formation of inclusion complexes with little molecules. The solubility degree of Alpha-cyclodextrin in water is 14.5 g/100ml @ 25°C, so the situation that needs high solubility of cyclodextrin.

CAS : 10016-20-3

Molecular Formula:  C36H60O30

Specifications

 
Items Index
Appearance White powder, Odorless, Minor sweet
Assay ≥ 98.0%
Moisture content ≤11.0%
Residue on ignition ≤0.1%
Specific rotation +147°~+152°
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 ≤100pcs/g
Moulds and yeasts ≤20pcs/g
Escherichia coli Negative
Product Codes- NCZ-2760K

β-Cyclodextrin (236605)

$345.00
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β-Cyclodextrin (236605)

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
Product Codes- NCZ-2761K

γ-Cyclodextrin (238605)

$189.00
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γ-Cyclodextrin (238605)

Feature:

gamma-Cyclodextrin is a ring-shaped molecule made up of eight glucose units linked by alpha-1,4-bonds. The solubility degree of gamma-cyclodextrin in water is 23.2 g/100ml @ 25°C, which is higher than alpha-cyclodextrin and beta-cyclodextrin, and it is used to allow formation of inclusion complexes with bigger molecules.

CAS : 17465-86-0

Molecular Formula: C48H80O40

Molecular Weight: 1297.12

Specifications:  
Items Index
Appearance White powder, Odorless, Minor sweet
Assay ≥ 98.0%
Moisture content ≤11.0%
Residue on ignition ≤0.1%
Specific rotation +172°~+180°
Color and clarity of solution Clear and colorless
Reductive sugar ≤0.2%
Chloride ≤0.018%
Heavy metal ≤0.0002%
As ≤0.00013%
Total bacteria count ≤1000pcs/g
Moulds and yeasts ≤200pcs/g
Escherichia coli Negative
Product Codes- NCZ-2762K