Sulfobutylated beta-cyclodextrin sodium salt (DS~6.5)

(CODE: 47)


Abbreviation: SBECD
CAS Number: 182410-00-0
Product Number: 47
Cyclodextrin type: Anionic cyclodextrins
Quality: standard grade
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Chemical and Physical Description
Average Molecular Formula C42H70-nO35 · (C4H8O3SNa)n
Average Formula Weight 1135.0 + n·(158.2)
Possible impurities 4-Hydroxybutane-1-sulfonic acid sodium salt, bis(4-sulfobutyl) ether disodium, residual BCD
Solubility
(in 100 cm3 solvent, at 25 °C)
Water: > 50 g
Methanol: < 0.5 g
Acetone: < 0.5 g
Specification
Test Method Result
Appearance Visual white or off-white powder
Identification A IR (USP <197>) complies with SBECD reference
Identification B (assay method) HPLC (USP <621>) tR of major peak complies with SBECD reference
Identification C Sodium ID (USP <191>) positive test
Assay HPLC (USP <621>) 95.0 - 105.0% on the anhydrous basis
Heavy metals EP 2.4.8 B NMT 10 ppm
Limit of related substances
BCD (Betadex)
total other
impurities
HPLC (USP <621>)
NMT 0.1%
NMT 1.0%
Limit of 1,4-butane sultone GC (USP <621>) NMT 1 ppm
Limit of 4-hydroxybutane-1-sulfonic acid CE (USP <1053>) NMT 0.09%
Limit of bis(4-sulfobutyl) ether disodium CE (USP <1053>) NMT 0.05%
Clarity of solution (30%, w/v) Visual, see details in the USP Monograph the solution is clear, and essentially free from particles of foreign matter
Average Degree of Substitution (n) CE (USP <1053>) 6.2 - 6.9
Limit of sodium chloride Limit test (USP <221>) NMT 0.2%
Residual solvents: ethanol GC (USP <621>) NMT 2500 ppm
pH (30%, w/v) USP <791> 4.0 - 6.8
Water content USP <921> Method I NMT 10.0%
Comments: only for reagent and laboratory purposes, not for human use.

Storage: at room temperature, in tightly closed container.

MSDS Downloads

  • 47-SBECD

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