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Pharma Grade Cyclodextrins
Standard Grade Cyclodextrins
Nonionic Cyclodextrins
Anionic Cyclodextrins
Cationic Cyclodextrins
Maltooligomers
Novel Single Isomer Cyclodextrins
Fluorescent Cyclodextrins
Fluorescent Polymers
Cyclodextrin Polymers
Complexes
HPLC Columns
Analytical standards
Alpha-cyclodextrin secondary standard
(CODE: )
Price:
€ 100.00 / g
Abbreviation:
ACD WS
CAS Number:
10016-20-3
Product Number:
Cyclodextrin type:
Native, neutral
Quality:
analytical standard
for
100.00
EUR
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€ 100.00 / g
Complies with EP and USP Pharmacopoeia requirements.
Chemical and Physical Description
Molecular Formula
C
36
H
60
O
30
Formula Weight
972.9
Possible impurities
Other cyclodextrins, linear oligomers
Solubility
(in 100 cm
3
solvent, at 25 °C)
Water: > 10 g
Methanol: < 1.0 g
DMSO: > 10 g
Specification
Test
Method
Range
Appearance
Visual
white or almost white powder
Identification A
Specific optical rotation,
EP 2.2.7, USP <871S>
+147° to +152°
Identification B
HPLC,
EP 2.2.29, USP<621>
conforms with reference
Identification C
Iodine test
yellow-brown precipitate
Appearance of 1% aqueous solution
Visual (EP 2.2.1)
clear solution
pH of 1% aqueous solution
EP 2.2.3, USP<791>
5.0 - 8.0
Related substances
residual BCD
residual GCD
sum of other impurities
HPLC,
EP 2.2.29, USP<621>
max. 0.25%
max. 0.25%
max. 0.50%
Reducing sugars
as in EP and USP monographs
max 0.2%
Elemental impurities
USP<231>
Cadmium NMT 0.2 µg/g
Lead NMT 0.5 µg/g
Arsenic NMT 1.5 µg/g
Mercury NMT 0.3 µg/g
Heavy metals
EP 2.4.8
max. 10 ppm
Light absorbing impurities (1%)
EP 2.2.25, USP<857>
A
230
-A
350
: max 0.10
A
350
-A
720
: max 0.05
Sulphated ash
EP 2.4.14, USP<281>
max. 0.1%
ACD content
HPLC (EP 2.2.29)
97.0 - 102.0%
ACD content
HPLC USP<621>
98.0-101.0%
Water content
USP<921>
max. 11.0%
Loss on drying
EP 2.2.32
max. 11.0%
Storage:
at room temperature, in tightly closed container.
MSDS Downloads
CY1001-ACD