Kushenol A(Synonyms: Leachianone E)

天然产物 黄酮类 Flavonoids

Kushenol A (Synonyms: Leachianone E)

Kushenol A (Leachianone E) 从苦参根中分离出来的。Kushenol A 是一种非竞争性酪氨酸酶 (tyrosinase) 抑制剂,可阻止 L-tyrosinase 转化为 L-DOPA,IC50Ki 值分别为 1.1 μM 和 0.4 μM。Kushenol A 是一种类黄酮抗氧化剂,对 α-葡萄糖苷酶 (alpha-glucosidase) (IC50: 45 μM; Ki: 6.8 μM) 和 β-淀粉酶 (beta-amylase) 具有抑制作用。Kushenol A 被认为是化妆品针对皮肤美白和衰老的潜在酶抑制剂。

Kushenol A(Synonyms: Leachianone E)

Kushenol A Chemical Structure

CAS No. : 99217-63-7

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Kushenol A 相关产品


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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[1]. Kushenol A is a flavonoid antioxidant, has inhibitory effects on alpha-glucosidase (IC50: 45 μM; Ki: 6.8 μM) and β-amylase[2]. Kushenol A is confirmed as potential inhibitors of enzymes targeted by cosmetics for skin whitening and aging[1].

IC50 & Target

IC50: 1.1 μM (tyrosinase); 45 μM (alpha-glucosidase)[1][2]

(In Vitro)

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].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Viability Assay[3]

Cell Line: NSCLC cell lines, A549 and NCI-H226
Normal human lung epithelial: BEAS-2B
Concentration: 0-60 μg/ml
Incubation Time: 24 hours
Result: Exhibited considerable cytotoxic effects against NSCLC cells.










Room temperature in continental US; may vary elsewhere.


4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

  • [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.

    [2]. Kim JH, et al. Glycosidase inhibitory flavonoids from Sophora flavescens. Biol Pharm Bull. 2006 Feb;29(2):302-5.

    [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.