Beta-cyclodextrin

Product Details

CasNo： 7585-39-9

MF： C42H70O35

Appearance： powder

Delivery Time： 15 days

Packing： 25kg/bag

Purity： 99%

• Basic Information
  • Chinese Name: Beta - cyclodextrin; β - cyclodextrin
  • English Name: Beta - cyclodextrin
  • CAS NO.: 7585 - 39 - 9
  • Molecular Formula: C₄₂H₇₀O₃₅, which can also be expressed as (C6​H10​O5​)7​
  • Molecular Weight: 1134.99
  • Alias: Cycloheptaose, cyclomaltoheptaose
• Physical and Chemical Properties
  • Appearance: White crystalline or crystalline powder.
  • Odor and Taste: Odorless, slightly sweet.
  • Solubility: Slightly soluble in water, with a solubility of 1.85% at room temperature, and the solubility increases with the increase of temperature. It is almost insoluble in methanol, ethanol, acetone or ether, and slightly soluble in pyridine, dimethylformamide, dimethyl sulfoxide and ethylene glycol.
  • Other Properties: It is non - hygroscopic, but easy to form stable hydrates. The specific rotation should be +159° to +164°. Its density is about 1.6g/cm³, and the melting point is 255 - 265℃.
• Preparation Method
  • Usually, it is produced by the action of cyclodextrin glucosyltransferase on starch. Specifically, taking amylose as the raw material, under the action of cyclodextrin glucosyltransferase, it forms low - viscosity starch, which is then converted into dextrin under certain conditions. The dextrin is concentrated to precipitate crystals, decolorized, and then recrystallized to obtain the final product.
• Quality Standards
  • According to the provisions of the Chinese Pharmacopoeia 2020 Edition, the pH value should be 5.0 - 8.0; the solution should be clear and colorless; reducing sugar ≤1.0%; loss on drying ≤14.0%; residue on ignition ≤0.1%; heavy metals shall not exceed ten parts per million. Calculated on the dried basis, the content should be 98.0% - 102.0%; the total aerobic bacteria ≤1000cfu/g, the total number of molds and yeasts ≤100cfu/g, and Escherichia coli shall not be detected.
• Main Uses
  • Pharmaceutical Field: It is commonly used as a drug carrier, stabilizer, and complexing agent. It can increase the stability of drugs, prevent drug oxidation and decomposition, improve drug solubility and bioavailability, reduce side effects, and mask the peculiar smell and odor of drugs.
  • Food Field: It is used as a food thickener, antioxidant, emulsifier, etc. It can prevent the volatilization of volatile substances such as spices, maintain the stability of nutrients, remove peculiar smells, improve the taste, make emulsified foods form a stable emulsion, and make preservatives release slowly to prolong the shelf - life of foods.
  • Other Fields: It is widely used in environmental protection, pesticides, cosmetics and other fields. It can be used as an adsorbent to adsorb environmental pollutants, as a carrier for flavor and aroma substances, and to increase the stability of oil - in - water emulsions.
• Packaging and Storage
  • Packaging: The packaging materials meet the national food and drug packaging requirements, and the common packaging specifications are 25kg/carton, etc.
  • Storage: It should be stored in a sealed container in a dry place, away from direct sunlight, and separated from strong acids, strong alkalis and toxic and harmful chemicals.