Heptakis(2,6-di-O-methyl)-beta-cyclodextrin content > 35% (DS~14)

(CODE: 35)


Abbreviation: DIMEB-50
CAS Number: 51166-71-3
Product Number: 35
Cyclodextrin type: Randomly substituted cyclodextrins, neutral
Quality: standard grade
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Chemical and Physical Description
Average Molecular Formula C42H70-nO35 · (CH3)n
Average Formula Weight: 1135 + n·(14.0)
Possible impurities Beta-cyclodextrin
Solubility
(in 100 cm3 solvent, at 25 °C)		 Water: > 50 g
Water (100 °C): < 1 g
Methanol: > 2 g
Chloroform: > 10 g
DMSO: > 50 g
Specification
Test Method Range
Appearance Visual white or slightly yellow crystalline powder
Identification 1 IR (EP 2.2.24) complies with reference
Identification 2 HPLC (EP 2.2.29) complies with reference
Appearance of 30 m/V% aqueous solution EP 2.2.1, EP 2.2.2 clear and colorless solution
Conductivity (25 °C; 1% solution in water) Conductometry (EP 2.2.38) max. 200 μS/cm
Isomer purity HPLC (EP 2.2.29) 35-55 Area%
Methylated beta-cyclodextrins Calculated min. 95 % (on dry basis)
Average Degree of Substitution (n) NMR (EP 2.2.33) 12.0 - 16.0
Residual BCD content TLC (EP 2.2.27) max. 0.5%
pH (1% aqueous solution) Potentiometry (EP 2.2.3) 4.0 - 8.0
Light absorbing impurities (1%) UV-Vis (EP 2.2.25) A230 - A350: max. 0.10
A350 - A720: max. 0.01
Water content EP 2.5.12 max. 5.0%
Comments: only for reagent and laboratory purposes, not for human use.

Storage: at room temperature, in tightly closed container.

MSDS Downloads

  • CY2004-0-DIMEB50

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