Alpha-cyclodextrin secondary standard

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Price: € 100.00 / g

Abbreviation: ACD WS
CAS Number: 10016-20-3
Product Number:
Cyclodextrin type: Native, neutral
Quality: analytical standard
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for 100.00  EUR
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Complies with EP and USP Pharmacopoeia requirements.

Chemical and Physical Description
Molecular Formula C36H60O30
Formula Weight 972.9
Possible impurities Other cyclodextrins, linear oligomers
Solubility
(in 100 cm3 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> A230-A350: max 0.10
A350-A720: 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