2. Protein Tyrosine Kinase/RTK
  3. Insulin Receptor
  4. Kaempferitrin

Kaempferitrin  (Synonyms: Lespedin; Lespenephryl)

Cat. No.: HY-N0628 Purity: 99.94%
COA Handling Instructions

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Kaempferitrin is a natural flavonoid, possesses antinociceptive, anti-inflammatory, anti-diabetic, antitumoral and chemopreventive effects, and activates insulin signaling pathway.

For research use only. We do not sell to patients.

Kaempferitrin Chemical Structure

Kaempferitrin Chemical Structure

CAS No. : 482-38-2

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 165 In-stock
Solution
10 mM * 1 mL in DMSO USD 165 In-stock
Solid
1 mg USD 55 In-stock
5 mg USD 130 In-stock
10 mg USD 210 In-stock
25 mg USD 440 In-stock
50 mg   Get quote  
100 mg   Get quote  

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Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of Kaempferitrin:

Kaempferitrin Related Antibodies

Top Publications Citing Use of Products

1 Publications Citing Use of MCE Kaempferitrin

  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Kaempferitrin is a natural flavonoid, possesses antinociceptive, anti-inflammatory, anti-diabetic, antitumoral and chemopreventive effects, and activates insulin signaling pathway.

IC50 & Target

Insulin Receptor[1]
In Vitro

Kaempferitrin activates insulin signaling pathway. Kaempferitrin causes survival rates higher than 90% at 1-20 μM in matured 3T3-L1 adipocyte, and the survival rates decline rapidly at 25 and 50 μM. Kaempferitrin (15 μM) increases insulin receptor beta tyrosine phosphorylation and tyrosine phosphorylation of the insulin receptor substrate 1, and such effects are similar to that of 10 nM insulin. Kaempferitrin (15 μM) also stimulates akt phosphorylation on ser473, and the stimulation can be blocked by a PI3-K inhibitor wortmannin. Kaempferitrin potently exerts the translocation of GLUT4 to the membrane of adipocytes at 15 μM, and this is suppressed by wortmannin. In addition, Kaempferitrin increases the total levels of Glu4 protein in differentiated cells and secreted adiponectin in mature 3T3-L1 adipocytes[1]. Kaempferitrin is cytotoxic to human cancer cells such as HeLa and MDA-MB231 cells, with IC50s of 45 ± 2.6 and 65 ± 2.6 μM, and shows low toxic effects on non-tumorigenic cells. Kaempferitrin (45 μM) induces apoptosis of HeLa cells after treatment for 24 and 48 h, and causes reactive oxygen species (ROS) generation in HeLa cells. Furthermore, Kaempferitrin (45 μM) exerts G1 arrest, causes the expression of proteins associated with intrinsic pathway of apoptosis and activates caspase 3 in HeLa cells[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Kaempferitrin Related Antibodies
In Vivo

Kaempferitrin (2.5, 10 and 25 mg/kg, i.p.) markedly suppresses the growth of tumor by 40%, 87% and 97%, and decreases tumor weight by 37%, 81% and 95%, respectively in nu/nu mice bearing HeLa tumor. Kaempferitrin also inhibits cell proliferation and extends life span in mice bearing tumor[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Molecular Weight

578.52

Formula

C27H30O14
CAS No.
Appearance

Solid

Color

Light yellow to yellow

SMILES

O=C1C(O[C@H](O[C@@H](C)[C@H](O)[C@H]2O)[C@@H]2O)=C(C3=CC=C(O)C=C3)OC4=CC(O[C@H](O[C@@H](C)[C@H](O)[C@H]5O)[C@@H]5O)=CC(O)=C14
Structure Classification
Initial Source
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, protect from light

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

Solvent & Solubility
In Vitro: 

DMSO : 25 mg/mL (43.21 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.7285 mL 8.6427 mL 17.2855 mL
5 mM 0.3457 mL 1.7285 mL 3.4571 mL
View the 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.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.08 mg/mL (3.60 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.08 mg/mL (3.60 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).

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

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation

Purity: 99.94%

COA (252 KB) HNMR (297 KB) LCMS (97 KB)

Handling Instructions (2659 KB)
References
Cell Assay
[1]

Viability assay is carried out by MTT assay. Preconfluent 3T3-L1 preadipocytes are seeded to reach confluence. Kaempferitrin is added in replacement of insulin immediately after confluence (day 0), and the viability is measured 3 h after addition of the compound. Another cell viability assay is performed at day 8. For kaempferitrin combined with insulin treatment, various concentrations of kaempferitrin are added simultaneously with 0.2 nM insulin from day 0 to day 8. Cells without insulin or kaempferitrin treatment during differentiation (day 0 to day 8) are used as control. Finally, to verify the cell viability in matured 3T3-L1 cells treated with insulin or kaempferitrin for 24-48 h, MTT are incubated for 3 h at the end of the 24 h and 48 h period of compound treatments, and survival rates calculated and compared to that without insulin or kaempferitrin[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[2]

The nu/nu mice are injected subcutaneously in their backs with HeLa cells (1.5 × 106). Four hours after tumor implantation, groups of five mice receive doses of Kaempferitrin between 2.5 to 25 mg/kg, dissolved in 0.1 mL of 0.9% saline solution, cisplatin (CDDP) 1 mg/kg or paclitaxel (PCX) 1 mg/kg injected intraperitoneally daily over a period of 32 days. The animal control group received 0.1 mL of vehicle solution. Tumors are measured using a vernier caliper, and their size in mm3 is calculated Tumor volume = lenght × width × height2. At the end of the experiments, animals are sacrificed and their tumors are excised and weighed[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
References

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 1.7285 mL 8.6427 mL 17.2855 mL 43.2137 mL
5 mM 0.3457 mL 1.7285 mL 3.4571 mL 8.6427 mL
10 mM 0.1729 mL 0.8643 mL 1.7285 mL 4.3214 mL
15 mM 0.1152 mL 0.5762 mL 1.1524 mL 2.8809 mL
20 mM 0.0864 mL 0.4321 mL 0.8643 mL 2.1607 mL
25 mM 0.0691 mL 0.3457 mL 0.6914 mL 1.7285 mL
30 mM 0.0576 mL 0.2881 mL 0.5762 mL 1.4405 mL
40 mM 0.0432 mL 0.2161 mL 0.4321 mL 1.0803 mL
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Kaempferitrin Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Kaempferitrin482-38-2Lespedin LespenephrylInsulin ReceptorInhibitorinhibitorinhibit

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