Kushenol A
Based on 4 publication(s) in Google Scholar
Kushenol A (Leachianone E) is isolated from the root of Sophora flavescent. Kushenol A is a non-competitive tyrosinase inhibitor to block the conversion of L-tyrosine to L-DOPA, shows IC50 and Kivalues of 1.1 μM and 0.4 μM, respectively. Kushenol A is a flavonoid antioxidant, has inhibitory effects on alpha-glucosidase (IC50: 45 μM; Ki: 6.8 μM) and β-amylase. Kushenol A is confirmed as potential inhibitors of enzymes targeted by cosmetics for skin whitening and aging.
For research use only. We do not sell to patients.
- Purity: 99.98%
- CAS No.: 99217-63-7
- Formula: C25H28O5
- Molecular Weight:408.49
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Storage:
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
Publications Citing Use of MedChemExpress (MCE) Kushenol A
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Biological Activity
Kushenol A (25?μM) exhibits a highly potent inhibitory activity on ABTS+?radical scavenging with an IC50 value of 9.7?±?0.1?μM, and exhibits inhibits scavenging activity as a percentage 93.7% at 25?μM[1].Kushenol A (0-60 μg/ml; 24 hours) shows considerable cytotoxic effects against NSCLC cells, exhibits IC50 values of 5.3 μg/ml and 20.5 μg/ml for A549 and NCI‐H226 cells, respectively. It shows an IC50 value of 57.2 μg/ml for BEAS-2B cells[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:NSCLC cell lines, A549 and NCI-H226Normal human lung epithelial: BEAS-2B
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Concentration:0-60 μg/ml
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Incubation Time:24 hours
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Result:Exhibited considerable cytotoxic effects against NSCLC cells.
Chemical Information
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CAS No. 99217-63-7
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Appearance Solid
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Molecular Weight 408.49
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Formula C25H28O5
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Color White to off-white
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SMILES
O=C1C[C@@H](C2=CC=CC=C2O)OC3=C(C[C@H](C(C)=C)C/C=C(C)\C)C(O)=CC(O)=C13
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Synonyms
Leachianone E
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Structure Classification
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Initial Source
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, protect from light
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)
Publications (4)
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Journal Impact Factor
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Most Recent
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Food Chem
Effects of sun drying combined with baking processes on the flavor quality of Chongqing Tuocha raw tea. [Abstract]2025 Dec 30:497:146992. PMID: 41285060 -
Food Chem
Flavonoid-mediated metabolic underpinning quality variation in red bud-sport pear mutants. [Abstract]2025 May 31:489:144992. PMID: 40466530 -
Cancer Med
Flavonoid extract Kushenol a exhibits anti-proliferative activity in breast cancer cells via suppression of PI3K/AKT/mTOR pathway. [Abstract]2023 Jan;12(2):1643-1654. PMID: 35789211 -
Pulm Pharmacol Ther
Targeted inhibition of IDO1 by Kushenol A enhances radiosensitivity in non-small cell lung cancer. [Abstract]2025 Jun 2:102362. PMID: 40466860
Solvent & Solubility
DMSO : 100 mg/mL (244.80 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Purity & Documentation
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Data Sheet (278 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[1]. Kim JH, et al. Kushenol A and 8-prenylkaempferol, tyrosinase inhibitors, derived from Sophora flavescens. J Enzyme Inhib Med Chem. 2018 Dec;33(1):1048-1054. [Content Brief]
[2]. Kim JH, et al. Glycosidase inhibitory flavonoids from Sophora flavescens. Biol Pharm Bull. 2006 Feb;29(2):302-5. [Content Brief]
[3]. Chen H, et al. A Novel Flavonoid Kushenol Z from Sophora flavescens Mediates mTOR Pathway by Inhibiting Phosphodiesterase and Akt Activity to Induce Apoptosis in Non-Small-Cell Lung Cancer Cells.Molecules. 2019 Dec 4;24(24). pii: E4425. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 2.4480 mL | 12.2402 mL | 24.4804 mL | 61.2010 mL |
| 5 mM | 0.4896 mL | 2.4480 mL | 4.8961 mL | 12.2402 mL | |
| 10 mM | 0.2448 mL | 1.2240 mL | 2.4480 mL | 6.1201 mL | |
| 15 mM | 0.1632 mL | 0.8160 mL | 1.6320 mL | 4.0801 mL | |
| 20 mM | 0.1224 mL | 0.6120 mL | 1.2240 mL | 3.0601 mL | |
| 25 mM | 0.0979 mL | 0.4896 mL | 0.9792 mL | 2.4480 mL | |
| 30 mM | 0.0816 mL | 0.4080 mL | 0.8160 mL | 2.0400 mL | |
| 40 mM | 0.0612 mL | 0.3060 mL | 0.6120 mL | 1.5300 mL | |
| 50 mM | 0.0490 mL | 0.2448 mL | 0.4896 mL | 1.2240 mL | |
| 60 mM | 0.0408 mL | 0.2040 mL | 0.4080 mL | 1.0200 mL | |
| 80 mM | 0.0306 mL | 0.1530 mL | 0.3060 mL | 0.7650 mL | |
| 100 mM | 0.0245 mL | 0.1224 mL | 0.2448 mL | 0.6120 mL |
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