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  4. OB-24

OB-24 is a potent inhibitor of heme oxygenase-1 (HO-1). Heme oxygenase-1, a member of the heat shock protein family, plays a key role as a sensor and regulator of oxidative stress. OB-24 significantly inhibited cell proliferation in vitro and tumor growth and lymph node/lung metastases in vivo. OB-24 has potential for the research of advanced prostate cancer (PCA).

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

OB-24 Chemical Structure

OB-24 Chemical Structure

CAS No. : 939825-12-4

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5 mg USD 297 In-stock
10 mg USD 475 In-stock
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Based on 1 publication(s) in Google Scholar

OB-24 Related Antibodies

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  • Purity & Documentation

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Description

OB-24 is a potent inhibitor of heme oxygenase-1 (HO-1). Heme oxygenase-1, a member of the heat shock protein family, plays a key role as a sensor and regulator of oxidative stress. OB-24 significantly inhibited cell proliferation in vitro and tumor growth and lymph node/lung metastases in vivo. OB-24 has potential for the research of advanced prostate cancer (PCA)[1].

Molecular Weight

373.67

Formula

C15H18BrClN2O2
CAS No.
Appearance

Solid

Color

Off-white to light yellow

SMILES

BrC1=CC=C(CCC2(CN3C=CN=C3)OCCO2)C=C1.Cl
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (267.62 mM; ultrasonic and warming and heat to 80°C; 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 2.6762 mL 13.3808 mL 26.7616 mL
5 mM 0.5352 mL 2.6762 mL 5.3523 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 (sealed storage, away from moisture). 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 (6.69 mM); Clear solution; Need ultrasonic

    This protocol yields a clear solution of 2.5 mg/mL.

    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 (6.69 mM); Clear solution; Need ultrasonic

    This protocol yields a clear solution of 2.5 mg/mL.

    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 (sealed storage, away from moisture)

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

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 (sealed storage, away from moisture). 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 2.6762 mL 13.3808 mL 26.7616 mL 66.9040 mL
5 mM 0.5352 mL 2.6762 mL 5.3523 mL 13.3808 mL
10 mM 0.2676 mL 1.3381 mL 2.6762 mL 6.6904 mL
15 mM 0.1784 mL 0.8921 mL 1.7841 mL 4.4603 mL
20 mM 0.1338 mL 0.6690 mL 1.3381 mL 3.3452 mL
25 mM 0.1070 mL 0.5352 mL 1.0705 mL 2.6762 mL
30 mM 0.0892 mL 0.4460 mL 0.8921 mL 2.2301 mL
40 mM 0.0669 mL 0.3345 mL 0.6690 mL 1.6726 mL
50 mM 0.0535 mL 0.2676 mL 0.5352 mL 1.3381 mL
60 mM 0.0446 mL 0.2230 mL 0.4460 mL 1.1151 mL
80 mM 0.0335 mL 0.1673 mL 0.3345 mL 0.8363 mL
100 mM 0.0268 mL 0.1338 mL 0.2676 mL 0.6690 mL
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OB-24 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:

OB-24939825-12-4OB24OB 24OthersHO-1heme oxygenase-1heat shock proteinoxidative stressInhibitorinhibitorinhibit

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