Zeylasteral

Zeylasteral
Product Name Zeylasteral
CAS No.: 87064-16-2
Catalog No.: CFN92084
Molecular Formula: C30H38O6
Molecular Weight: 494.6 g/mol
Purity: >=98%
Type of Compound: Triterpenoids
Physical Desc.: Powder
Targets: Antifection
Source: The herbs of Tripterygium wilfordii Hook. f.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Price:
Zeylasteral and demethylZeylasteral are 6-oxophenolic triterpenoids isolated from the root of Maytenus blepharodes. Zeylasteral and demethylZeylasteral have antimicrobial activity against Gram-positive bacteria and the yeast Candida albicans.
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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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    Planta Med. 2005 Apr;71(4):313-9.
    Antimicrobial activity of 6-oxophenolic triterpenoids. Mode of action against Bacillus subtilis.[Pubmed: 15856406]
    Zeylasteral and demethylZeylasteral are 6-oxophenolic triterpenoids isolated from the root of Maytenus blepharodes, which have antimicrobial activity against Gram-positive bacteria and the yeast Candida albicans.
    METHODS AND RESULTS:
    The time-kill curves for Zeylasteral and demethylZeylasteral at concentrations twice their MICs, against Bacillus subtilis showed that the colony forming units were reduced in 3-log10 and > 4-log10 respectively. This reduction was dependent on inoculum size and the growth phase of cells, and was greater when the compounds were incorporated in the exponential phase, indicating a bacteriolytic effect. Treatment with both agents, particularly with Zeylasteral (20 microg/mL) caused a reduction of optical density at 550 nm. With regard to the synthesis of DNA, RNA, protein and cell wall, the compounds exhibited the fastest inhibition against cell wall synthesis.
    CONCLUSIONS:
    Thus, the predisposition to lysis, the morphological changes seen by microscopy, and the complete inhibition in the incorporation the N-acetyl-d-[1 - 14C]glucosamine, suggest that the phenolic compounds compromise the cell wall synthesis and/or cytoplasmic membrane.
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