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(2-Hydroxypropyl)-alpha-cyclodextrin (DS~4.5)
(CODE: 41)
Abbreviation:
HPACD
CAS Number:
99241-24-4
Product Number:
41
Cyclodextrin type:
Randomly substituted, non-ionic
Quality:
Research grade
for
0.00
EUR
Get a quote
Chemical and Physical Description
Average Molecular Formula
C
36
H
60-n
O
30
· (C
3
H
7
O)
n
Average Formula Weight
972.9 + n·(58.1)
Possible impurities
Propylene glycol, ACD, hydroxypropylated linear dextrins
Solubility
(in 100 cm
3
solvent, at 25 °C)
Water: ~ 50 g
Methanol: ~ 5 g (opalescent)
Chloroform: < 1 g
Specification
Tests and methods
Requirements
Appearance# / visual
white or off-white powder
Clarity of solution
1 % aqueous solution is clear
Appearance of aqueous solution # /
(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
Conductivity ( EP 2.2.38)
< 200 µS/cm
Light absorbing impurities UV-VIS
A
220-350nm
: max. 0.1
A
350-600nm
: max. 0.01
MS (Molar substitution)* / NMR
(EP 2.2.33)
0.5-0.9
Propylene glycol / GC (EP 2.2.28)
max. 0.5%
Loss on drying# /
(EP 2.2.32)
max. 10.0%
Residual αCD / HPLC
(EP 2.2.29)
max. 1.5%
pH# (EP 2.2.3)
5.0-8.0
* MS: number of hydroxypropyl groups / anhydroglucose units
# tests to extend expiry
Storage:
in well-closed container at room temperature.
Expiry/retest date: 36 months from date of qualification.
Comments:
only for reagent and laboratory purposes, not for human use.
MSDS Downloads
CY1005-HPACD
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