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
• Empirical Formula (Hill Notation): C₂₈H₃₈O₆
• CAS Number: 5119-48-2
• Molecular Weight: 470.60
• MDL number: MFCD10687098
• UNSPSC Code: 41116107
• NACRES: NA.24

Properties

• 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

Description

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

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: 438.8 °F
• flash_point_c: 226 °C