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Key Documents

PHL89824

Withaferin A

phyproof® Reference Substance

Synonym(s):

4β,5β,6β,22R)-5,6-Epoxy-4,22,27-trihydroxy-1-oxo-ergosta-2,24-dien-26-oic acid δ-lactone, Withaferine

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About This Item

Empirical Formula (Hill Notation):
C28H38O6
CAS Number:
Molecular Weight:
470.60
MDL number:
UNSPSC Code:
41116107
NACRES:
NA.24

grade

primary reference standard

product line

phyproof® Reference Substance

Assay

≥95.0% (HPLC)

manufacturer/tradename

PhytoLab

application(s)

food and beverages

format

neat

storage temp.

2-8°C

SMILES string

C[C@H]([C@H]1CC(C)=C(CO)C(=O)O1)[C@H]2CC[C@H]3[C@@H]4C[C@H]5O[C@]56[C@@H](O)C=CC(=O)[C@]6(C)[C@H]4CC[C@]23C

InChI

1S/C28H38O6/c1-14-11-21(33-25(32)17(14)13-29)15(2)18-5-6-19-16-12-24-28(34-24)23(31)8-7-22(30)27(28,4)20(16)9-10-26(18,19)3/h7-8,15-16,18-21,23-24,29,31H,5-6,9-13H2,1-4H3/t15-,16-,18+,19-,20-,21+,23-,24+,26+,27-,28+/m0/s1

InChI key

DBRXOUCRJQVYJQ-CKNDUULBSA-N

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General description

This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities). The exact value can be found on the certificate. Produced by PhytoLab GmbH & Co. KG

Application


  • Catalysis driven by an amyloid-substrate complex: Research demonstrates the role of buffer concentrates in maintaining optimal pH and stability conditions during biochemical reactions involving amyloid substrates, critical for developing new therapeutic agents (Sawazaki et al., 2024).

  • High throughput microfluidics-based synthesis of PEGylated liposomes for precise size control and efficient drug encapsulation: This research utilizes buffer concentrates to manage the pH and ionic strength during the microfluidic synthesis of PEGylated liposomes, critical for achieving size precision and high encapsulation efficiency in drug delivery systems (Akar et al., 2024).

  • Development of Analytical Quality by Design RP-HPLC Method and Its Validation for Estimation of Gefitinib from Bulk, Tablet Dosage Form and Complex Nanoformulation: Buffer concentrates play a vital role in this study, optimizing the RP-HPLC method for precise quantification of gefitinib, a critical aspect in ensuring the quality and efficacy of pharmaceutical products (More et al., 2024).



Other Notes

This compound is commonly found in plants of the genus: withania

Legal Information

phyproof is a registered trademark of PhytoLab GmbH & Co. KG

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

438.8 °F

Flash Point(C)

226 °C


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