Summary
γ-cyclodextrin has greater cavity than b-cyclodextrin, the cavity may include a wider range of subject molecules; it has better water solubility , the water solubility of γ-cyclodextrin is 25.6g/ 100ml at temperature of25 ℃, while the solubility of α-cyclodextrin is12.7g/100ml in water and the water solubility of b-cyclodextrin is only1.88g/100ml. γ-cyclodextrin has a broader application than the b-cyclodextrin.
Properties
Specification：over 98% Art NO. ACJ0004A
【Structure parameters】：
|
Items |
Specification |
|
Number of glucose units |
8 |
|
Molecular |
1297 |
|
Solubility in water g/100ml at ambient temp. |
23.2 |
|
[α]D25 |
177.4±0.5 |
|
Cavity diameter Å |
7.5-8.3 |
|
Height of torus |
7.9±0.1 |
|
Dia. of periphery |
17.5±0.4 |
|
Vol. of cavity(approx.)Å |
472 |
|
Cavity vol (approx.): per mol CD. mls |
265 |
|
per lg CD mls |
0.20 |
|
Crystal forms（from water） |
Quadratic prisms |
|
Crystallographic params. C1-C4-C4 angle |
112.6 |
|
φ/φº |
165/-169 |
|
O4---O4 distance Å |
4.48 |
|
O2---O3 distance Å |
2.31 |
|
Crystal water wt% |
8.13-17.7 |
|
Diffusion const.40ºC |
3000 |
|
Hydrolysis by A. oryzae α-amylase |
Rapid |
|
Vmaxvalue min-1 |
2300 |
|
Relative permittivity |
70.0 |
|
Pk (by potentionmetry) 25ºC |
39.5 |
|
Partial molar volumes in solution ml/mol |
12.081 |
|
Adiabatic compressidbility |
801.2 |
|
In aqueous soln.ml.mol-1.bar-1.104 |
-5.0 |
【Package and storage】：
Packing: 500 grams / bag,1 kg/bag,2 kg/bag,10 kg/barrel
Storage: It should be sealed to store in a dry and cool place.
Product Detail
【Application】：
γ-cyclodextrin is mainly used in medicine, R&D industries etc, in chemistry industry γ- cyclodextrin is a valuable chemical reagents. When there is it, the fluorescence intensity of fluorchrome increases significantly, so it can be used for analysis of protein and amino acid; It also can be used to separate long-chain organic compounds and raceme etc. Further more, adsorbent made of cyclodextrin can be used in adsorption of chromatography. It also can be used as a complexing agent and tissue culture agent, it can be used in enzyme activity studies.