2. Cell Cycle/DNA Damage Apoptosis
  3. Checkpoint Kinase (Chk) Apoptosis
  4. Prexasertib dimesylate

Prexasertib dimesylate  (Synonyms: LY2606368 dimesylate)

Cat. No.: HY-18174E Purity: 99.04%
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Prexasertib dimesylate (LY2606368 dimesylate) is a selective, ATP-competitive second-generation checkpoint kinase 1 (CHK1) inhibitor with a Ki of 0.9 nM and an IC50 of <1 nM. Prexasertib dimesylate inhibits CHK2 (IC50=8 nM) and RSK1 (IC50=9 nM). Prexasertib dimesylate causes double-stranded DNA breakage and replication catastrophe resulting in apoptosis. Prexasertib dimesylate shows potent anti-tumor activity.

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

Prexasertib dimesylate Chemical Structure

Prexasertib dimesylate Chemical Structure

CAS No. : 1234015-58-7

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 135 In-stock
Solution
10 mM * 1 mL in DMSO USD 135 In-stock
Solid
5 mg USD 110 In-stock
10 mg USD 180 In-stock
25 mg USD 350 In-stock
50 mg USD 550 In-stock
100 mg USD 900 In-stock
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Based on 18 publication(s) in Google Scholar

Other Forms of Prexasertib dimesylate:

Prexasertib dimesylate Related Antibodies

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Description

Prexasertib dimesylate (LY2606368 dimesylate) is a selective, ATP-competitive second-generation checkpoint kinase 1 (CHK1) inhibitor with a Ki of 0.9 nM and an IC50 of <1 nM. Prexasertib dimesylate inhibits CHK2 (IC50=8 nM) and RSK1 (IC50=9 nM). Prexasertib dimesylate causes double-stranded DNA breakage and replication catastrophe resulting in apoptosis. Prexasertib dimesylate shows potent anti-tumor activity[1][2].

IC50 & Target[1]

Chk1

0.9 nM (Ki)

Chk1

<1 nM (IC50)

Chk2

8 nM (IC50)

In Vitro

Prexasertib dimesylate (LY2606368 dimesylate) inhibits MELK (IC50=38 nM), SIK (IC50=42 nM), BRSK2 (IC50=48 nM), ARK5 (IC50=64 nM). Prexasertib dimesylate requires CDC25A and CDK2 to cause DNA damage[1].
Prexasertib dimesylate (33, 100 nM; for 7 hours) results in DNA damage during S-phase in HeLa cells[1].
Prexasertib dimesylate (8-250 nM; pre-treated for 15 minutes) inhibits CHK1 autophosphorylation (S296) and CHK2 autophosphorylation (S516) in HT-29 cells[1].
Prexasertib dimesylate (4 nM; 24 hours) results in a large shift in cell-cycle populations from G1 and G2-M to S-phase with an accompanied induction of H2AX phosphorylation in U-2 OS cells[1].
Prexasertib dimesylate (33 nM; for 12 hours) causes chromosomal fragmentation in HeLa cells. Prexasertib dimesylate (100 nM; 0.5 to 9 hours) induces replication stress and depletes the pool of available RPA2 for binding to DNA[1].

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

Prexasertib dimesylate Related Antibodies

Cell Cycle Analysis[1]

Cell Line: HeLa cells
Concentration: 33, 100 nM
Incubation Time: For 7 hours
Result: Had an IC50 of 37 nM and resulted in the G2-M population received DNA damage during S-phase but continued to progress through the cell cycle into an early mitosis.

Western Blot Analysis[1]

Cell Line: HT-29 cells
Concentration: 8, 16, 31, 63, 125, 250 nM
Incubation Time: Pre-treated for 15 minutes
Result: Inhibited CHK1 autophosphorylation (S296) and CHK2 autophosphorylation (S516) (IC50 of less than 31 nM) in HT-29 cells.
In Vivo

Prexasertib dimesylate (LY2606368 dimesylate; 1-10 mg/kg; SC; twice daily for 3 days, rest 4 days; for three cycles) causes growth inhibition in tumor xenografts[1].
Prexasertib dimesylate (15 mg/kg; SC) causes CHK1 inhibition in the blood and the phosphorylation of both H2AX (S139) and RPA2 (S4/S8)[1].

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

Animal Model: Female CD-1 nu-/nu- mice (26-28 g) with Calu-6 cells[1]
Dosage: 1, 3.3, or 10 mg/kg
Administration: SC; twice daily for 3 days, rest 4 days; for three cycles
Result: Caused statistically significant tumor growth inhibition (up to 72.3%).
Animal Model: Female CD-1 nu-/nu- mice (26-28 g) with Calu-6 cells[1]
Dosage: 15 mg/kg (Pharmacokinetic Analysis)
Administration: SC (200 μL)
Result: CHK1 was 7 ng/mL at 12 hours and 3 ng/mL by 24 hours in plasma exposures.
Phosphorylation of both H2AX (S139) and RPA2 (S4/S8) was detectable at 4 hours, showing the rapid occurrence of DNA damage.
Clinical Trial
Molecular Weight

557.60

Formula

C20H27N7O8S2
CAS No.
Appearance

Solid

Color

Light yellow to yellow

SMILES

N#CC1=NC=C(NC2=NNC(C3=C(OC)C=CC=C3OCCCN)=C2)N=C1.CS(=O)(O)=O.CS(=O)(O)=O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)

Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (179.34 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : 50 mg/mL (89.67 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.7934 mL 8.9670 mL 17.9340 mL
5 mM 0.3587 mL 1.7934 mL 3.5868 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 (stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • Molarity Calculator

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

Mass
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Concentration
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Volume
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Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

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Volume (start)

V1

=
Concentration (final)

C2

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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: ≥ 3.5 mg/mL (6.28 mM); Clear solution

    This protocol yields a clear solution of ≥ 3.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (35.0 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: ≥ 3.5 mg/mL (6.28 mM); Clear solution

    This protocol yields a clear solution of ≥ 3.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (35.0 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.
Calculation results:
Working solution concentration: mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
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).
Purity & Documentation
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 (stored under nitrogen). 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
H2O / DMSO 1 mM 1.7934 mL 8.9670 mL 17.9340 mL 44.8350 mL
5 mM 0.3587 mL 1.7934 mL 3.5868 mL 8.9670 mL
10 mM 0.1793 mL 0.8967 mL 1.7934 mL 4.4835 mL
15 mM 0.1196 mL 0.5978 mL 1.1956 mL 2.9890 mL
20 mM 0.0897 mL 0.4484 mL 0.8967 mL 2.2418 mL
25 mM 0.0717 mL 0.3587 mL 0.7174 mL 1.7934 mL
30 mM 0.0598 mL 0.2989 mL 0.5978 mL 1.4945 mL
40 mM 0.0448 mL 0.2242 mL 0.4484 mL 1.1209 mL
50 mM 0.0359 mL 0.1793 mL 0.3587 mL 0.8967 mL
60 mM 0.0299 mL 0.1495 mL 0.2989 mL 0.7473 mL
80 mM 0.0224 mL 0.1121 mL 0.2242 mL 0.5604 mL
DMSO 100 mM 0.0179 mL 0.0897 mL 0.1793 mL 0.4484 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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Prexasertib dimesylate Related Classifications

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  • 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:

Prexasertib dimesylate1234015-58-7LY2606368 dimesylateCheckpoint Kinase (Chk)ApoptosisATP-competitiveRSK1double-strandedDNAreplicationMELKSIKBRSK2ARK5CDC25ACDK2HeLaautophosphorylationS296S516H2AXHT-29Inhibitorinhibitorinhibit

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