11-Deoxyalisol B

11-Deoxyalisol B
Product Name 11-Deoxyalisol B
CAS No.: 155073-73-7
Catalog No.: CFN92401
Molecular Formula: C30H48O3
Molecular Weight: 456.7 g/mol
Purity: >=98%
Type of Compound: Triterpenoids
Physical Desc.: Powder
Source: The tubers of Alisma plantago-aquatica Linn.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Price:
Reference standards.
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Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).

Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com

The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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    To establish ultraviolet-visible(UV-Vis)spectrophotometry and HPLC method for determination of triterpenoids in Rhizoma Alismatis extracts.
    METHODS AND RESULTS:
    With 5% vanillin-acetic acid and perchloric acid as the developer, the colorimetric method was applied.Total triterpenoids in extracts was determined at 555 nm wavelength by UV-Vis spectrophotometry, and 12 triterpenoids was determined by HPLC with Ultimate XB-C18 column(4.6 mm×150 mm, 5 μm)and the mobile phase consisting of acetonitrile-water(5% methanol)at a flow rate of 1.0 mL · min-1.The detection wavelength was set at 208 nm. With 23-acetate alisol B as the standard, the UV-Vis spectrophotometry method was applied.There was a good linear relationship between the concentration and absorbance of 23-acetate alisol B in the range of 5.9-15.6 μg · mL-1 (r=0.999 1);the average recovery rate was 99.05% and the RSD was 2.3%.By HPLC, the linear range of 12 detected compounds were fine(r>0.999 0), the overall recoveries ranged from 95.89%-99.33%, with the RSD ranging from 2.0%-3.4%.The contents of 12 triterpenoids including alisol A, alisol B, alisol C, alisol G, alisol L, 23-acetate-alisol A, 23-acetate-alisol B, 23-a cetate-alisol C, 16-oxo-23-acetate-alisol A, 16-oxo-24-acetate-alisol A, 11-Deoxyalisol B, 24-a cetate-alisol A were 5.71%-5.95%, 3.47%-3.99%, 2.53%- 2.97%, 3.07%-3.93%, 3.65%-3.99%, 2.39%-3.02%, 10.56%-11.32%, 9.44%-9.86%, 0.63% -3.14%, 1.08%-1.21%, 2.29%-2.85% and 4.04%-5.02%, respectively.
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