(2-Hydroxypropyl)-alpha-cyclodextrin (DS~4.5)

(CODE: 41)


Abbreviation: HPACD
CAS Number: 99241-24-4
Product Number: 41
Cyclodextrin type: Randomly substituted cyclodextrins, neutral
Quality: standard grade
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Chemical and Physical Description
Average Molecular Formula C36H60-nO30 · (C3H7O)n
Average Formula Weight 972.9 + n·(58.1)
Possible impurities Propylene glycol, ACD, hydroxypropylated linear dextrins
Solubility
(in 100 cm3 solvent, at 25 °C)		 Water: ~ 50 g
Methanol: ~ 5 g (opalescent)
Chloroform: < 1 g
Specification
Test Method Range
Appearance Visual white or almost white powder
Identification HPLC (EP 2.2.29) conforms with reference
Clarity of solution
(1 g in 2 mL distilled water)		 Visual (EP 2.2.1, EP 2.2.2) clear and colorless
Residual ACD HPLC (EP 2.2.29) max. 2.0%
pH (5%) EP 2.2.3 5.0 - 8.0
Average Degree of Substitution (n) NMR (EP 2.2.33) 3.0 - 5.4
(molar substitution: 0.5 - 0.9)
Light absorbing impurities (1%) UV-Vis (EP 2.2.25) A230 - A350: max. 0.1
A350 - A600: max. 0.01
Loss on drying EP 2.2.32 max. 7%
Comments: only for reagent and laboratory purposes, not for human use.

Storage: at room temperature, in tightly closed container.

MSDS Downloads

  • CY1005-HPACD

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