2. MAPK/ERK Pathway
  3. JNK
  4. SR-3306

SR-3306 is a selective, potent, highly brain penetrant JNK inhibitor.

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

SR-3306 Chemical Structure

SR-3306 Chemical Structure

CAS No. : 1128096-91-2

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
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10 mM * 1 mL in DMSO USD 143 In-stock
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SR-3306 Related Antibodies

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  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

SR-3306 is a selective, potent, highly brain penetrant JNK inhibitor.

IC50 & Target

JNK

 

In Vitro

The effect of SR-3306 or Tat-Sab on cell viability in response to oxidative stress is measured by an MTT assay. H9c2 cells treated with 100 μM H2O2/FeSO4 are ~40% viable, whereas the addition of 500 nM SR-3306 or 500 nM SR3562 to cells treated with 100 μM H2O2/FeSO4 increases viability to ~90%, and the addition of 10 μM Tat-Sab peptide to cells treated with 100 μM H2O2/FeSO4 increases viability to ~70% compared with 98% viability in untreated cells. Similar results are found for primary human cardiomyocytes [2].

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

SR-3306 Related Antibodies
In Vivo

Administration of SR-3306 [10 mg/kg/day (s.c.) for 14 days] increases the number of tyrosine hydroxylase immunoreactive (TH+) neurons in the SNpc by 6-fold and reduces the loss of the TH+ terminals in the striatum relative to the corresponding side of 6-OHDA-lesioned rats that receive only vehicle (p<0.05). In addition, SR-3306 [10 mg/kg/day (s.c.) for 14 days] decreases d-amphetamine-induced circling by 87% compared to 6-hydroxydopamine (6-OHDA)-lesioned animals given vehicle. Steady-state brain levels of SR-3306 at day 14 are 347 nM, which is approximately 2-fold higher than the cell-based IC50 for this compound. Finally, immunohistochemical staining for phospho-c-jun (p-c-jun) reveals that SR-3306 [10 mg/kg/day (s.c.) for 14 days] produces a 2.3-fold reduction of the number of immunoreactive neurons in the substantia nigra pars compacta (SNpc) relative to vehicle treated rats[1]. In lean mice, intraperitoneal (i.p.) or intracerebroventricular (i.c.v.) administration of SR-3306 reduces food intake and body weight. Moreover, i.p. and i.c.v. administrations of SR11935 exert similar anorectic effects as SR3306, which suggests JNK2 or JNK3 mediates aspect of the anorectic effect by pan-JNK inhibition. Furthermore, daily i.p. injection of SR-3306 (7 days) prevents the increases in food intake and weight gain in lean mice upon high-fat diet feeding, and this injection paradigm reduced high-fat intake and obesity in diet-induced obese (DIO) mice[3].

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

490.56

Formula

C28H26N8O
CAS No.
Appearance

Solid

Color

Off-white to light yellow

SMILES

CC(C=C1)=NC=C1C2=NN(C=N2)C3=CC=C(NC4=NC=CC(C5=CC=CC(N6CCOCC6)=C5)=N4)C=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 : 125 mg/mL (254.81 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 2.0385 mL 10.1924 mL 20.3849 mL
5 mM 0.4077 mL 2.0385 mL 4.0770 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    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.08 mg/mL (4.24 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.
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

Purity: 99.0%

COA (252 KB) HNMR (229 KB) LCMS (430 KB)

Handling Instructions (2659 KB)
References
Cell Assay
[2]

H9c2 cells and primary human cardiomyocytes are grown under normal cell culture conditions (37 °C and 5% CO2) in DMEM supplemented with 10% fetal bovine serum and penicillin/streptomycin. To assure that the cells are actively growing, only cells at ~80% confluency and between passages 5 and 15 are used in our experiments. H9c2 cells and primary human cardiomyocytes are exposed to 500 nM SR-3306, 500 nM SR-3562, 0.01% DMSO vehicle control, 10 μM Tat-SabKIM1, and 10 μM Tat-scramble for 30 min prior to the addition of stress. To induce oxidative stress and mitochondrial dysfunction in H9c2 cells and primary human cardiomyocytes, 100 μM hydrogen peroxide (H2O2)/FeSO4 or 100 μM hydrogen peroxide (H2O2)/FeSO4 is added directly to the media of the cells. The cells are exposed to H2O2/FeSO4 for the times indicated in the experiments[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[1][3]

Rats[1]
Four Sprague-Dawley rats are used. SR-3306 is dosed at 2.5 or 10 mg/kg in subcutaneous minipumps at a rate of 5 μL/h, and after 24 h on days 1, 2, 3, 4, 6, 7, 8, 9, 10, 13, and 14 blood, and day 14 brain are collected. Plasma is generated, and the samples are frozen at -80 °C. The plasma and brain are mixed with Acetonitrile (1:5 v/v or 1:5 w/v, respectively). The brain sample is sonicated with a probe tip sonicator to break up the tissue, and samples are analyzed for compound levels by LC-MS/MS. Plasma compound levels are determined against standards made in plasma and brain levels against standards made in blank brain matrix[1].
Mice[3]
Male, lean or DIO C57BL/6 mice are used. The mice are trained to scheduled, daily, 2-hour water access during the light for 2 weeks. On the first day of the conditioned taste aversion (CTA) test, the trained mice are given a novel 0.15% saccharin solution to drink for the first 50 minutes, and are then given an i.p. injection of SR-3306 (30 mg/kg or 60 mg/kg) or the vehicle. The injected mice are then provided water for the remaining 70 min. The next day, the mice are allowed to choose between water and 0.15% saccharin for 50 min. Fluid consumption is calculated[3].

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 2.0385 mL 10.1924 mL 20.3849 mL 50.9622 mL
5 mM 0.4077 mL 2.0385 mL 4.0770 mL 10.1924 mL
10 mM 0.2038 mL 1.0192 mL 2.0385 mL 5.0962 mL
15 mM 0.1359 mL 0.6795 mL 1.3590 mL 3.3975 mL
20 mM 0.1019 mL 0.5096 mL 1.0192 mL 2.5481 mL
25 mM 0.0815 mL 0.4077 mL 0.8154 mL 2.0385 mL
30 mM 0.0679 mL 0.3397 mL 0.6795 mL 1.6987 mL
40 mM 0.0510 mL 0.2548 mL 0.5096 mL 1.2741 mL
50 mM 0.0408 mL 0.2038 mL 0.4077 mL 1.0192 mL
60 mM 0.0340 mL 0.1699 mL 0.3397 mL 0.8494 mL
80 mM 0.0255 mL 0.1274 mL 0.2548 mL 0.6370 mL
100 mM 0.0204 mL 0.1019 mL 0.2038 mL 0.5096 mL
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SR-3306 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:

SR-33061128096-91-2SR3306SR 3306JNKc-Jun N-terminal kinaseInhibitorinhibitorinhibit

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