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标准品!伽马环糊精,Gamma-Cyclodextrin,GCD,G-cyclodextrin

γ-环糊精 标准品,Standard Grade Cyclodextrins

CAS No. : 17465-86-0
说明 : Native, Neutral,Standard Grade Cyclodextrins
级别 : Standard Grade
品名 : γ-Cyclodextrin,伽马环糊精,Gamma-Cyclodextrin,GCD,G-cyclodextrin,γ-环糊精,标准品!
产地 : 匈牙利
包装 : 电询
CHEMICAL AND PHYSICAL DESCRIPTION
Molecular FormulaC48H80O40
Formula Weight1297.2
Possible impuritiesOther cyclodextrins, linear oligomers
Solubility
(in 100 cmsolvent, at 25 °C)
Water: > 20 g
Methanol: < 1 g
DMSO: > 20 g
SPECIFICATION
TestMethodRange
AppearanceVisualwhite or almost white powder
IdentificationHPLC (EP 2.2.29)complies with reference
Color and clarity of solution
(10%; l= 1 cm; λ= 420 nm)
UV-Vis (EP 2.2.25)A (420 nm) < 0.20
pH of 1% aqueous solutionEP 2.2.35.0 - 8.0
GCD contentHPLC (EP 2.2.29)> 95.0%
Related substances
residual ACD
residual BCD
sum of other impurities
HPLC (EP 2.2.29)
max. 0.5%
max. 0.5%
max. 0.50%
ConductometryEP 2.2.38max. 200 μS/cm
Loss on dryingEP 2.2.32max. 11.0%

Comments: only for reagent and laboratory purposes, not for human use.

Storage: at room temperature, in tightly closed container. 

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