Product Details
| Product Name: Hydroxypropyl-gamma -cyclodextrin | CAS No.: 128446-34-4 |
| Min. Order: 1Kg/Bag | Purity: 99.5% |
| Supply Ability: 1MT | Release date: 2020/01/18 |
Product Name: Hydroxypropyl gamma cyclodextrin
Hydroxypropyl-ϒ-cyclodextrin
CAS No.：128446-34-4
Other Names: HPGCD; (2-Hydroxyapropyl)-gamma-cyclodextrin
M.F.: C48H80-nO40.(C3H7O)n
Place of Origin: China
Type: Auxiliaries and Other Medicinal Chemicals
Grade Standard: Pharmaceutical grade
Brand Name: Zhiyuan
Purity: 98%Min
Appearance: White powder
Solubility in water: ≥800g/L(25℃)
Standards: Enterprice Standard
Packaging & Delivery
Packaging Details: 1Kg/Aluminum foil bag ; 20kg/Drum
Product information:
Gamma cyclodextrin is an 8 glucose units composed of end to end cyclic compounds, compared with beta cyclodextrin, whice has a larger diameter cavity(about 1.3 times cyclodextrin), cavity volume (about 1.6 times more beta cyclodextrin), better solubility in water (12.5 times the cyclodextrin cavity) and a better fit (no ring hydrogen bond, non rigid ring). Therefore, Gamma cyclodextrin has more potential application than beta cyclodextrin.Gamma cyclodextrin water solubility is 23.2g/100ml (25 DEG C), in some cases the solubility still limits the application .
Hydroxypropyl gamma cyclodextrin's water solubility increase to 80g/100ml (25 C) furtherly , and hydropropyl gamma cyclodextrin is no longer a single pure product but the coexistence of multiple substituted compounds, with guest molecules when wrapping is not easy to generate inclusion crystallization. Overall, hydroxypropyl - gamma cyclodextrin has a higher solubility in water and stronger anti crystallization ability
Test Standard
Enterprise Standard
ITEMS
CRITERIA
Appearance
White or almost white powder;Odorless, slightly sweet;Freely soluble in water,soluble in ethanol,
almost insoluble in acetone.
Water solution pH
pH5.0~8.5
Light-absorbing impurities
Between 230 and 350 nm,the absorbance is NMT 0.5; and between 350 and 660 nm, the absorbance is NMT 0.5.
Water
≤10.0%
Alpha Cyclodextrin
≤1.5%
Residue on ignition
≤0.2%
Heavy Metal
≤10ppm
Propylene glycol
≤0.5%
Assay
≥95%
Hydroxypropoxyl content
17.5%~29.1%
The total aerobic microbial count
≤1000cfu/g
The total combined moulds and yeasts count
≤100cfu/g
Escherichia coli
Absence
Bacterial Endotoxins Test
According to preparation needs
Packaging and storage
Preserve in well-closed containers
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China- Since: 2010-07-19
- Address: Boxing economic development zone,Binzhou ,Shandong,China