1. Cell Cycle/DNA Damage
  2. CDK
  3. CLK1-IN-1

CLK1-IN-1 is a potent and selective of Cdc2-like kinase 1 (CLK1) inhibitor, with an IC50 of 2 nM.

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

CLK1-IN-1 Chemical Structure

CLK1-IN-1 Chemical Structure

CAS No. : 2123491-32-5

Size Price Stock Quantity
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
USD 495 In-stock
Solution
10 mM * 1 mL in DMSO USD 495 In-stock
Solid
5 mg USD 450 In-stock
10 mg USD 750 In-stock
25 mg USD 1500 In-stock
50 mg USD 2400 In-stock
100 mg USD 3800 In-stock
200 mg   Get quote  
500 mg   Get quote  

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Customer Review

Based on 1 publication(s) in Google Scholar

Top Publications Citing Use of Products
  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

CLK1-IN-1 is a potent and selective of Cdc2-like kinase 1 (CLK1) inhibitor, with an IC50 of 2 nM.

IC50 & Target

CLK1

2 nM (IC50)

In Vitro

CLK1 is the most potently inhibited kinase (IC50: 2 nM). In addition to CLK1, only two kinases have an IC50 value less than 100 nM, namely CLK2 (IC50: 31 nM) and CLK4 (IC50: 8 nM), DYRK1A is the strongest off-target. The ability of CLK1-IN-1 to induce autophagy in BNL CL.2 and SKOV-3 (human ovarian cancer cell line) cells is also examined. The effects of CLK1-IN-1 on yellow LC3 puncta also displays obvious dose dependency, and a dose of 10 μM shows the best performance. In addition, in CLK1-IN-1-treated cells, the number of red LC3 puncta (mRFP signals only35) increases compared with that of DMSO-treated cells, indicating the formation of autolysosomes. Importantly, CLK1-IN-1 stimulats the degradation of SQSTM1/p62 and increases the ratio of red LC3 puncta to yellow LC3 puncta, both of which indicate an induction of autophagic flux by CLK1-IN-1[1].

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

In Vivo

APAP exposure results in severe liver injury, and treatment with CLK1-IN-1 (ip, 30 mg/kg) imparts a significant hepatoprotective effect. The results show that treatment with CLK1-IN-1 decreases serum ALT and AST levels significantly such that both marker enzymes return to normal levels[1].

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

Molecular Weight

409.42

Formula

C24H16FN5O

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

C[C@@H](C1=CC=C(F)C=C1)N2N=NC3=C2C4=CC(C5=CC=C6C(N=CO6)=C5)=CC=C4N=C3

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 2 years
-20°C 1 year
Solvent & Solubility
In Vitro: 

DMSO : 25 mg/mL (61.06 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 2.4425 mL 12.2124 mL 24.4248 mL
5 mM 0.4885 mL 2.4425 mL 4.8850 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

  • 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    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (6.11 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

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).
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
References
Cell Assay
[1]

BNL CL.2 (mouse embryonic liver cell line) is selected, and three concentrations (20 nM, 100 nM, and 10 μM) of CLK1-IN-1 are used[1].

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

Animal Administration
[1]

Mice[1]
Drug-induced liver injury (DILI) is a major public health concern and accounts for more than 50% of acute liver failure cases. APAP is a widely used antipyretic analgesic drug. Herein, the APAP-induced hepatotoxicity mouse model is used to examine the therapeutic effect of CLK1-IN-1 in vivo. Male C57BL/6 mice are given either saline (n=3, ip) or APAP (500 mg/kg) (n=15, ip). To examine the hepatoprotective effect, mice are injected (ip) with CLK1-IN-1 (25) (30 mg/kg), 30 (30 mg/kg, positive control), rapamycin (30 mg/kg, positive control), or solvent (12.5% ethanol and 12.5% castor oil, 10 mL/kg), immediately followed by APAP (500 mg/kg) injection (ip). All mice are sacrificed 6 h later. Liver sections are examined by H&E staining, and the serum from the blood samples is used for ALT and AST activity tests[1].

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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.4425 mL 12.2124 mL 24.4248 mL 61.0620 mL
5 mM 0.4885 mL 2.4425 mL 4.8850 mL 12.2124 mL
10 mM 0.2442 mL 1.2212 mL 2.4425 mL 6.1062 mL
15 mM 0.1628 mL 0.8142 mL 1.6283 mL 4.0708 mL
20 mM 0.1221 mL 0.6106 mL 1.2212 mL 3.0531 mL
25 mM 0.0977 mL 0.4885 mL 0.9770 mL 2.4425 mL
30 mM 0.0814 mL 0.4071 mL 0.8142 mL 2.0354 mL
40 mM 0.0611 mL 0.3053 mL 0.6106 mL 1.5265 mL
50 mM 0.0488 mL 0.2442 mL 0.4885 mL 1.2212 mL
60 mM 0.0407 mL 0.2035 mL 0.4071 mL 1.0177 mL
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CLK1-IN-1 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.

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CLK1-IN-1
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