Sulfobutylated-gamma cyclodextrin sodium salt (DS~4)

(CODE: 3041.1)


Abbreviation: SBEGCD
CAS Number: -
Product Number: 3041.1
Cyclodextrin type: Anionic cyclodextrins
Quality: fine chemical grade
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Chemical and Physical Description
Average Molecular Formula C48H80-nO40 · (C4H8O3SNa)n
Average Formula Weight 1297.2 + n·(158.2)
Possible impurities 4-Hydroxybutane-1-sulfonic acid sodium salt, bis(4-sulfobutyl) ether disodium, residual gamma-cyclodextrin
Solubility
(in 100 cm3 solvent, at 25 °C)		 Water: > 50 g
Methanol: < 0.5 g
Acetone: < 0.5 g
Specification
Test Method Range
Appearance Visual white to slight yellow powder
Average Degree of Substitution (n) CE (EP 2.2.47) 3.0 - 5.0
Purity Calculated
(on dry substance)		 > 95%
Impurities:
residual GCD
bis(4-sulfobutyl)ether disodium
4-hydroxybutane-1-sulfonic acid
HPLC (EP 2.2.29)
CE (EP 2.2.47)
CE (EP 2.2.47)
< 1.0%
< 0.1%
< 2.5%
Water content Karl-Fischer (EP 2.5.12)  < 10.0%
Comments: only for reagent and laboratory purposes, not for human use.

Storage: at room temperature, in tightly closed container.