Name: hydroxypropyl betadex
Other name : 2-hydroxypropyl-beta-cyclodextirn ;
Hydroxypropyl-β-cyclodextrin .
Abbreviation : HPBCD
CAS: 128446-35-5; 94035-02-6; 136019-12-0
EINECS: 420-920-1
Molecular formula : C42H70-nO35(C3H8O2)n
Molecular weight: 1134.98+58n
Solubility(in 100cm3 solvent, at 25℃) : water: >180 g
Methanol: >33g
DMSO: >33g
Qaulity ： Pharma grade / food grade / cosmetics grade / industry grade
Standard : USP39/ EP9.0 / CP2015
Package: 500g/bag , 2kg/bag, 10kg/drum , 20kg/drum
Use : medical \ food \ chemical \ cosmetic \ other industries
pecification :
ITEMS |
SPECIFICATION(USP39-NF34) |
RESULTS |
Appearance |
white powder, insipid, innocent |
Qualify |
Assay |
≥98％ |
99.5% |
Degree of Substitution |
2.8-10.5 |
5.5 |
Clarity of solution |
50%(w/v) water solution is clear |
clear |
Identification(IR) |
same absorption bands with USP Hydroxypropyl Betadex RS |
Qualify |
Loss on Drying |
≤10％ |
4.5% |
|
Conductivity |
10%(w/v) water solution ≤200µS/cm |
70 |
Propylene oxide |
≤1ppm |
＜0.18ppm |
Propylene glycol |
≤2.5％ |
0.05% |
Sum of Other Impurities |
≤1％ |
0.51% |
Betadex |
≤1.5% |
0.39% |
Residue on Ignition |
≤0.2％ |
0.09% |
Heavy Metal |
≤20ppm |
＜10ppm |