Carboxymethyl Beta Cyclodextrin CAS 218269-34-2
When pH<4, Carboxymethyl-β-Cyclodextrin (CM-β-CD) solubility is low in water. But when pH>4, Carboxyl Group Dissociate, CM-β-CD solubility becomes higher. It is very good for controlled release.
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Specifications | |
Name | Carboxymethyl beta cyclodextrin |
CAS No. | 218269-34-2 |
Synonyms | Carboxymethyl-β-Cyclodextrin;
Carboxymethyl beta cyclodextrin sodium salt; |
Molecular Formula | C42H70-nO35· (CH2COONa)n |
Molecular Weight | 1135.0+80 n |
Appearance | White or light yellow powder, odorless |
Solubility of Carboxymethyl beta cyclodextrin | ||||||
Solvent | Water | Ethanol | Acetone | Ether | Methanol | DMF |
Solubility | X<0.5ml | 50ml≦X<500ml | X>5000ml | X>5000ml | X>5000ml | 15ml≦X<50ml |
Remark | X means solubility.
Temperature T=25 ℃, Note: (Temperature T=25 ℃) Take 0.5g of solute and dissolve it with the minimum amount of corresponding reagent. Slightly soluble: 15ml≤ X<50ml Slightly soluble: 15ml ≤ X<50ml Extremely soluble: X<0.5ml Slightly soluble: 50ml ≤ X<500ml Soluble: 0.5ml ≤ X<5ml Very slightly soluble: 500ml ≤ X<5000ml Dissolution: 5ml ≤ X<15ml Insolubility: X>5000ml |
Carboxymethyl beta Cyclodextrin (carboxymethyl- β- Cyclodextrin) has low solubility in low pH solutions, but can be dissolved in neutral and alkaline solutions (pH>4) at any concentration, and its structure is loose, and its self mobility is greatly improved. It has good solubility in the environment of human intestinal pH 6-7, and can be used as drug prolonging release agent. It has lower hemolysis than hydroxypropyl beta Cyclodextrin.
As chiral selectivity (or mobile phase chiral additive), it is used for the analysis of chiral compounds by high performance liquid chromatography or high performance capillary electrophoresis. It can be mainly applied to the resolution of chiral drugs such as Paroxetine and its intermediates, Barbital, steroids, quinolones and some amino acids.
Shandong Binzhou Zhiyuan Biotechnology is a high-tech enterprise specializing in the research and production of Cyclodextrin and its derivatives. Relying on the Cyclodextrin Research Center of Shandong University, it has a strong technical force. We are equipped with advanced detection equipment, such as meteorological chromatograph, high-performance liquid chromatography, ion chromatograph, capillary electrophoresis, infrared spectrometer, one thousandth balance, trace moisture detector, and other imported detection instruments. The inspection methods are complete and can provide mass spectrometry, carbon spectroscopy, infrared spectroscopy, and nuclear magnetic resonance, providing strong support for product quality control and development research. Reliable quality and favorable prices have been recognized by customers both domestically and internationally.
Shandong Binzhou Zhiyuan is committed to best customer services.
1.Can assurance of product quality and safety.
2.Can offer flexible packing options, such as 1g/ bottle, 2g/ bottle, 5g/ bottle, 10g/ bottle or or according to customers’ request. Including g to kg package sizes.
3.Can accurate weighing service.
4.Storage:
Indoor in a cool and ventilated place, sealed for storage.
5.Transportation method:via FEDEX, UPS, DHL etc.
6.Validity period:two years.