3,27-Dihydroxy-20(29)-lupen-28-oic acid methyl ester

3,27-Dihydroxy-20(29)-lupen-28-oic acid methyl ester
Product Name 3,27-Dihydroxy-20(29)-lupen-28-oic acid methyl ester
CAS No.: 263844-79-7
Catalog No.: CFN98305
Molecular Formula: C31H50O4
Molecular Weight: 486.7 g/mol
Purity: >=98%
Type of Compound: Triterpenoids
Physical Desc.: Powder
Targets: Topoisomerase II
Source: The herbs of Peganum harmala
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Price:
3α, 27-Dihydroxylupen-20(29)-en-28-oic acid methyl ester is a potent topoisomerase II inhibitor.
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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.

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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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    Tetrahedron Letters, 2004, 45(16):3261-3263.
    Determination of the absolute stereochemistry of lupane triterpenoids by fucofuranoside method and ORD spectrum[Reference: WebLink]

    METHODS AND RESULTS:
    The absolute configurations of the secondary alcohols at C-3 position in betulinic acid and 3-epibetulinic acid have been unambiguously determined as S- and R-configurations, respectively, based on the fucofuranoside method.
    CONCLUSIONS:
    The absolute stereochemistry of 3α, 27-dihydroxylupen-20(29)-en-28-oic acid methyl ester (3,27-Dihydroxy-20(29)-lupen-28-oic acid methyl ester ), a potent topoisomerase II inhibitor, was determined to be 3R, 5R, 8R, 9R, 10R, 13R, 14S, 17S, 18R, and 19R by NMR and ORD spectroscopic studies.
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