1. GPCR/G Protein MAPK/ERK Pathway
  2. Ras
  3. CE3F4

CE3F4 is a selective antagonist of exchange protein directly activated by cAMP (Epac1), with IC50s of 10.7 μM and 66 μM for Epac1 and Epac2(B), respectively.

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CE3F4 Chemical Structure

CE3F4 Chemical Structure

CAS No. : 143703-25-7

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10 mM * 1 mL in DMSO
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Based on 1 publication(s) in Google Scholar

Other Forms of CE3F4:

Top Publications Citing Use of Products

1 Publications Citing Use of MCE CE3F4

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Description

CE3F4 is a selective antagonist of exchange protein directly activated by cAMP (Epac1), with IC50s of 10.7 μM and 66 μM for Epac1 and Epac2(B), respectively.

IC50 & Target

IC50: 10.7 μM (Epac1), 66 μM (Epac2(B))[1]

In Vitro

CE3F4 is a selective antagonist of Epac1, with IC50s of 10.7 μM and 66 μM for Epac1 and Epac2(B), respectively. CE3F4 is more active on Epac1 than (S)-stereoisomer ((S)-CE3F4, IC50, 56 μM), but less active than (R)-CE3F4 (IC50, 5.8 μM). CE3F4 (50 μM) shows more inhibitory activities against GEF activity of Epac1, than that of Epac2(AB) or Epac2(B)[1]. CE3F4 reduces the exchange activity of Epac1 induced by 007, with IC50 of 23 ± 3 μM. CE3F4 (40 μM) specifically inhibits Epac1 guanine nucleotide exchange activity without interference with Rap1 activity or Epac1-Rap1 interaction. CE3F4 has no influence on PKA activity. CE3F4 (20 μM) inhibits Epac-induced Rap1 activation in living cultured HEK293 cells[2]. CE3F4 (20 μM) significantly inhibits the late phase of ERK activation stimulated by glucose in INS-1 cells[3].

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

In Vivo

CE3F4 (1-3 mg/kg; through a catheter in the internal jugular vein) inhibits atrial fibrillation (AF) and CE3F4 (3 mg/kg; i.v.) inhibits ventricular arrhythmias[4].
CE3F4 (10 mg/kg; i.v.) improves cardiac function after myocardial infarction in mice[5].

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

Animal Model: Wild-type (WT) mice (induced AF after 20min of CE3F4 administration)[4]
Dosage: 3 mg/kg and 1mg/kg
Administration: Through a catheter in the internal jugular vein
Result: Shortened the duration of the pacing-induced AF at 3mg/kg.
Animal Model: Casq2-KO mice (premature ventricular contraction induced by isoproterenol injection 20min after CE3F4 administration)[4]
Dosage: 3 mg/kg
Administration: I.v.
Result: Reduced the incidence of sympathetic activation-induced ventricular arrhythmias.
Molecular Weight

351.01

Formula

C11H10Br2FNO

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=CN1C(C)CCC2=C1C=C(Br)C(F)=C2Br

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

-20°C, stored under nitrogen

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

Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (142.45 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 2.8489 mL 14.2446 mL 28.4892 mL
5 mM 0.5698 mL 2.8489 mL 5.6978 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.

  • 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: ≥ 2.5 mg/mL (7.12 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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: ≥ 2.5 mg/mL (7.12 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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.
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 (stored under nitrogen)

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: ≥98.0%

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
DMSO 1 mM 2.8489 mL 14.2446 mL 28.4892 mL 71.2230 mL
5 mM 0.5698 mL 2.8489 mL 5.6978 mL 14.2446 mL
10 mM 0.2849 mL 1.4245 mL 2.8489 mL 7.1223 mL
15 mM 0.1899 mL 0.9496 mL 1.8993 mL 4.7482 mL
20 mM 0.1424 mL 0.7122 mL 1.4245 mL 3.5612 mL
25 mM 0.1140 mL 0.5698 mL 1.1396 mL 2.8489 mL
30 mM 0.0950 mL 0.4748 mL 0.9496 mL 2.3741 mL
40 mM 0.0712 mL 0.3561 mL 0.7122 mL 1.7806 mL
50 mM 0.0570 mL 0.2849 mL 0.5698 mL 1.4245 mL
60 mM 0.0475 mL 0.2374 mL 0.4748 mL 1.1871 mL
80 mM 0.0356 mL 0.1781 mL 0.3561 mL 0.8903 mL
100 mM 0.0285 mL 0.1424 mL 0.2849 mL 0.7122 mL
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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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CE3F4
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