β -Cyclodextrin
Price | $10 |
Package | 1KG |
Min. Order: | 1KG |
Supply Ability: | 999 |
Update Time: | 2020-11-16 |
Product Details
Product Name: β -Cyclodextrin | CAS No.: 7585-39-9 |
Min. Order: 1KG | Purity: 99 |
Supply Ability: 999 | Release date: 2020/11/16 |
USP41 ITEMS
CRITERIA
Appearance
White, practically odorless, fine crystalline powder having a slightly sweet
taste. Sparingly soluble in water.
Identification
IR
Same absorption bands as USP Beta Cyclodextrin RS
LC
The retention time of the major peak of sample solution corresponds to the
standard solution
Optical rotation
+160°~+164°
Iodine test solution
A yellow-brown precipitate is formed
Residue on Ignition
≤0.1%
Reducing Sugars
≤0.2%
Light-absorbing impurities
Between 230 nm and 350 nm,the absorbance is not greater than 0.10; and
between 350 nm and 750 nm, the absorbance is not greater than 0.05.
Alpha cyclodextrin
≤0.25%
Gamma cyclodextrin
≤0.25%
Other related substances
≤0.5%
Water determination
≤14.0%
Color and Clarity of Solution
0.2g/20ml water solution is clear and colorless
pH
5.0~8.0
Assay
98.0%~102.0%
The total aerobic microbial count
≤1000cfu/g
The total combined moulds and yeasts count
≤100cfu/g
Packaging and storage
Preserve in tight containers. No storage requirements specified.
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- Since: 2019-10-11
- Address: Room 201, 11 Xinhouying Road, Xicheng Lian, Xinluo District, Longyan City, Fujian Province, China