Gamma-cyclodextrin secondary standard

(CODE: -)

Price: € 115.76 / g

Abbreviation: GCD WS

CAS Number: 17465-86-0

Product Number: -

Cyclodextrin type: Native, non-ionic

Quality: Analytical standard grade

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Volume	Volume Discount	Price
from 1 g	0%	€ 115.76 / g

Complies with USP Pharmacopoeia requirements.

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= 1 cm; 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° to +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%