Gamma-cyclodextrin

(CODE: 36)


Abbreviation: GCD
CAS Number: 17465-86-0
Product Number: 36
Cyclodextrin type: Native, neutral
Quality: pharma grade
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Chemical and Physical Description
Molecular Formula C48H80O40
Formula Weight 1297.2
Possible impurities Other cyclodextrins, linear oligomers
Solubility
(in 100 cm3 solvent, at 25 °C)
Water: > 20 g
Methanol: < 1.0 g
DMSO: > 20 g
Specification
Test Method Range
Appearance Visual white or almost white powder
Color and clarity of solution (10%; l= 1cm; λ= 420 nm) UV-Vis (USP <851>) A (420 nm) < 0.20
Identification A IR (USP <197K>) complies with reference
Identification B HPLC (USP <621>) retention time corresponds to standard
Identification C: Specific optical rotation USP <781S> 174° - 180°
Microbial contamination USP <61> <62> TAMC: < 103 CFU/g
TYMC: < 102 CFU/g
Salmonella: absent/10 g
E. Coli: absent/1 g
Residue on ignition USP <281> max. 0.1%
Elemental impurties USP <233> Cadmium NMT 0.5 µg/g
Lead    NMT 0.5 µg/g
Arsenic NMT 1.5 µg/g
Mercury NMT 3.0 µg/g
Related substances
residual ACD
residual BCD
total other impurities
HPLC (USP <621>)
max. 0.5%
max. 0.5%
max. 0.5%
Reducing substances USP max. 0.5%
GCD content HPLC (USP <621>) 98.0 - 102.0%
Loss on drying USP <731> max. 11.0%
Storage: at room temperature, in tightly closed container.

MSDS Downloads

  • CY3001-GCD

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