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CAS 17465-86-0 γ-cyclodextrin
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CAS 17465-86-0 γ-cyclodextrin

  • GCD
  • 17465-86-0

Gamma cyclodextrin:

Abbreviation

GCD

CAS No:

17465-86-0

Synonym:

γ-cyclodextrin

Molecular formula:

C48H80O40

Quality:

Pharm grade

 

Description:

Gamma-cyclodextrin is a cydextrin with 8 glucose units connected via α-1.4 sugar bonds to form a ring structure.


Characteristics & Applications:

Gamma-cyclodextrin has a larger cavity than beta-cyclodextrin, so the cavity can contain a wider range of guest molecules; It has better water solubility, at room temperature 25℃ /100ml, the solubility of gamma-cyclodextrin is 25.6g, while the solubility of alpha-cyclodextrin is 12.7g/100ml water, and the solubility of beta-cyclodextrin is only 1.88g/100ml water.

 

Speciafication:


Appearance:

White or almost white amorphous or crystalline powder .

Solubility:

Freely soluble in water and in propylene glycol;Very slightly soluble in alcohol.

Identification:

IR

Same absorption bands as USP Gamma Cyclodextrin RS

HPLC

The retention time of the major peak of same solution corresponds to the standard solution.

Optical rotation

+174°~+180°

Assay

98.0%~102.0%

Residue on lgnition

≤0.1%

PH

PH 5.0~8.0

Reducing Substances

≤0.5%

Alpha cyclodextrin

≤0.5%

Beta cyclodextrin

≤0.5%

Sum of other impurities

≤0.5%

Loss on Drying

≤11.0%

Color and Clarity of solution

At 420nm,the absorbance is not greater than 0.2.,and the solution is clear.

The total aerobic microbial count

≤1000cfu/g

The total combined moulds and yeasts count

≤100cfu/g

Storage

Preserve in well-closed containers.Store at room temperature.

 

Package:

Normal package:20kg/fiber drum.


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