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(2-Hydroxypropyl)-beta-cyclodextrin (DS~4.5)
(CODE: 27)
Abbreviation: HPBCD
CAS Number: 128446-35-5
Product Number: 27
Cyclodextrin type: Randomly substituted cyclodextrins, neutral
Quality: Research grade
Chemical and Physical Description
| Average Molecular Formula | C42H70-nO35 · (C3H7O)n |
| Average Formula Weight | 1135 + n·(58.1) |
| Possible impurities | Propylene glycol, BCD, hydroxypropylated linear dextrins |
| Solubility (in 100 cm3 solvent, at 25 °C) |
Water: > 33 g Methanol: > 33 g DMF: > 33 g |
Specification
| Test | Method | Range |
| Appearance | Visual | white or almost white powder |
| Appearance of aqueous solution | Visual (EP 2.2.1, EP 2.2.2) Method II | 1 g dissolved in 2 mL of water with heating is clear and colorless and remains so after cooling |
| Identification 1 | IR (EP 2.2.24) | complies with reference |
| Purity | Calculated (on dry substance) |
min. 90% |
| Molar substitution | NMR (EP 2.2.33) | 0.6 - 0.9 |
| Residual BCD | HPLC (EP 2.2.29) | max. 1.0% |
| Propylene glycol content | GC (EP 2.2.28) | max. 5.0% |
| Loss on drying | EP 2.2.32 | max. 7.0% |
Storage: at room temperature, in tightly closed container.
MSDS Downloads
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