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Product Details
Hydroxypropyl Gamma Cyclodextrin
Hydroxypropyl Gamma Cyclodextrin
Hydroxypropyl Gamma Cyclodextrin
Product Introduction
Hydroxypropyl Gamma cyclodextrin is recommended for high value-added special materials products, such as medicine, health care products, cosmetics or other larger  molecularor  which hydroxypropyl beta cyclodextrin has no ability to treat.
Quick Details
Product Name: Hydroxypropyl-Gamma-Cyclodextrin
CAS No. : 128446-34-4
Synonyms: Hydroxypropyl-γ-Cyclodextrin
Molecular Formula: C48H80-nO40.(C3H7O)n
Molecular Weight: 1297.2+n·(58.1)
Product Specification
                                  Hydroxypropyl gamma Cyclodextrin
Test StandardEnterprise Standard
AppearanceWhite or almost white powder;Odorless, slightly sweet; Freely
 soluble in water,soluble in ethanol,almost insoluble in acetone.
Water solution pHpH5.0~8.5
Light-absorbing impuritiesBetween 230 and 350 nm,the absorbance is NMT 0.5; and between 350 and 660 nm, the absorbance is NMT 0.5.
Gamma Cyclodextrin≤1.5%
Residue on ignition≤0.2%
Heavy Metal≤10ppm
Propylene glycol≤0.5%
Hydroxypropoxyl content17.5%~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.
Usage of Hydroxypropyl gamma cyclodextrin
Hydroxypropyl gamma cyclodextrin's water solubility increase to 80g/100ml (25 C) furtherly , and hydroxypropyl gamma cyclodextrin is no longer a single pure compound but a coexistence of multiple substituted compounds, when including with guest molecules is not easy to generate crystallization. Overall, hydroxypropyl- gamma cyclodextrin has a higher solubility in water and  stronger  anti crystallization ability.
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