2. Apoptosis
  3. MDM-2/p53
  4. SP-141

SP-141 is a specific inhibitor of MDM2. SP-141 promotes MDM2 auto-ubiquitination and degradation. SP-141 might be used for the research of pancreatic cancer and breast cancer cells.

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

SP-141 Chemical Structure

SP-141 Chemical Structure

CAS No. : 1253491-42-7

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Solid + Solvent
10 mM * 1 mL in DMSO
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 USD 121 In-stock
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10 mM * 1 mL in DMSO USD 121 In-stock
Solid
5 mg USD 110 In-stock
10 mg USD 176 In-stock
25 mg USD 385 In-stock
50 mg USD 649 In-stock
100 mg USD 1045 In-stock
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Customer Review

Based on 1 publication(s) in Google Scholar

SP-141 Related Antibodies

Top Publications Citing Use of Products

1 Publications Citing Use of MCE SP-141

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

SP-141 is a specific inhibitor of MDM2. SP-141 promotes MDM2 auto-ubiquitination and degradation. SP-141 might be used for the research of pancreatic cancer and breast cancer cells[1].

IC50 & Target

MDM2[1]
In Vitro

SP-141 (0.01-10 μM; 72 hours) inhibits human pancreatic cancer cell growth with IC50 values of less than 0.5 μM (0.38-0.50 μM) in a p53-independent manner. The IMR90 cells are much less sensitive to SP141 than the pancreatic cancer cells, suggesting that SP141 has a selective cytotoxicity for cancer cells[1].
SP141 induces MDM2 auto-ubiquitination and proteasomal degradation in both HPAC and Panc-1 cells[1].

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

SP-141 Related Antibodies

Cell Viability Assay[1]

Cell Line: HPAC, Panc-1, AsPC-1, and Mia-Paca-2 pancreatic cancer cell lines. Human primary fibroblasts (IMR90)
Concentration: 0.01, 0.1, 1, and 10 μM
Incubation Time: 72 hours
Result: IC50s of 0.38, 0.50, 0.36, 0.41, and 13.22 μM for HPAC, Panc-1, AsPC-1, Mia-Paca-2, and IMR90, respectively.

Western Blot Analysis[1]

Cell Line: HPAC and Panc-1 cells
Concentration: 0.5 μM
Incubation Time: 120 minutes
Result: Reduced the MDM2 protein levels.
Increased the degradation rate of the MDM2 protein in the presence of Cycloheximide (15 μg/mL).
In Vivo

SP-141 (40 mg/kg; administered by i.p. injection; 5 d/wk for about three weeks) suppresses pancreatic tumor growth in both xenograft and orthotopic mouse models[1].

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

Animal Model: Nude mice bearing Panc-1 xenograft tumors[1]
Dosage: 40 mg/kg
Administration: Administered by i.p. injection; 5 d/wk for about three weeks
Result: Significantly suppressed the growth of pancreatic xenograft tumors. On Day 18, the tumor volume in the treated group was reduced by 75% compared with that in the control group. There were no significant differences in the body weight compared with the control group.
Molecular Weight

324.38

Formula

C22H16N2O
CAS No.
Appearance

Solid

Color

White to yellow

SMILES

COC1=CC2=C(NC3=C2C=CN=C3C4=C5C=CC=CC5=CC=C4)C=C1
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 (385.35 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 3.0828 mL 15.4140 mL 30.8280 mL
5 mM 0.6166 mL 3.0828 mL 6.1656 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
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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

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C2

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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 (6.41 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% Corn Oil

    Solubility: ≥ 2.08 mg/mL (6.41 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 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 (20.8 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

Purity: 99.94%

COA (255 KB) HNMR (270 KB) LCMS (93 KB)

Handling Instructions (2659 KB)
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 3.0828 mL 15.4140 mL 30.8280 mL 77.0701 mL
5 mM 0.6166 mL 3.0828 mL 6.1656 mL 15.4140 mL
10 mM 0.3083 mL 1.5414 mL 3.0828 mL 7.7070 mL
15 mM 0.2055 mL 1.0276 mL 2.0552 mL 5.1380 mL
20 mM 0.1541 mL 0.7707 mL 1.5414 mL 3.8535 mL
25 mM 0.1233 mL 0.6166 mL 1.2331 mL 3.0828 mL
30 mM 0.1028 mL 0.5138 mL 1.0276 mL 2.5690 mL
40 mM 0.0771 mL 0.3854 mL 0.7707 mL 1.9268 mL
50 mM 0.0617 mL 0.3083 mL 0.6166 mL 1.5414 mL
60 mM 0.0514 mL 0.2569 mL 0.5138 mL 1.2845 mL
80 mM 0.0385 mL 0.1927 mL 0.3854 mL 0.9634 mL
100 mM 0.0308 mL 0.1541 mL 0.3083 mL 0.7707 mL
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SP-141 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:

SP-1411253491-42-7SP141SP 141MDM-2/p53auto-ubiquitinationdegradationpancreaticcancerbreastInhibitorinhibitorinhibit

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