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POBN (4-POBN) is a cell permeable, hydrophilic spin trap that can be used to detect free radical adducts.

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

POBN Chemical Structure

POBN Chemical Structure

CAS No. : 66893-81-0

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Based on 1 publication(s) in Google Scholar

POBN Related Antibodies

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Description

POBN (4-POBN) is a cell permeable, hydrophilic spin trap that can be used to detect free radical adducts[1].

In Vitro

When POBN (20 mM) and Sodium formate (100 mM) are mixed in the collecting tube with bile in the presence of 2,2′-dipyridyl (DP) (5 mM) and bathocuproinedisulfonic acid disodium salt hydrate (BC) (5 mM), only a minor residual signal of POBN radical adduct is observed[1].

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

POBN Related Antibodies
In Vivo

Electron spin resonance (ESR) spectrum of radical adducts detected in bile of rats 1 h after acute Sodium formate (2 g/kg) and POBN (1.5 g/kg) i.p. administration[1].

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

Animal Model: Fischer male rats (300-400 g)[1]
Dosage: 1.5 g/kg (Pharmacokinetic Analysis)
Administration: Injected simultaneously i.p.
Result: A strong six-line ESR signal of the POBN radical adduct was detected in the bile of rats after acute sodium formate poisoning.
Molecular Weight

194.23

Formula

C10H14N2O2
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

[O-][N+]1=CC=C(C=C1)/C=[N+](C(C)(C)C)\[O-]
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

H2O : 100 mg/mL (514.85 mM; Need ultrasonic)

DMSO : 50 mg/mL (257.43 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 5.1485 mL 25.7427 mL 51.4854 mL
5 mM 1.0297 mL 5.1485 mL 10.2971 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. 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

  • Dilution Calculator

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

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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

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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 (12.87 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 (12.87 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.

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
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:  PBS

    Solubility: 100 mg/mL (514.85 mM); Clear solution; Need ultrasonic

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. 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 / H2O 1 mM 5.1485 mL 25.7427 mL 51.4854 mL 128.7134 mL
5 mM 1.0297 mL 5.1485 mL 10.2971 mL 25.7427 mL
10 mM 0.5149 mL 2.5743 mL 5.1485 mL 12.8713 mL
15 mM 0.3432 mL 1.7162 mL 3.4324 mL 8.5809 mL
20 mM 0.2574 mL 1.2871 mL 2.5743 mL 6.4357 mL
25 mM 0.2059 mL 1.0297 mL 2.0594 mL 5.1485 mL
30 mM 0.1716 mL 0.8581 mL 1.7162 mL 4.2904 mL
40 mM 0.1287 mL 0.6436 mL 1.2871 mL 3.2178 mL
50 mM 0.1030 mL 0.5149 mL 1.0297 mL 2.5743 mL
60 mM 0.0858 mL 0.4290 mL 0.8581 mL 2.1452 mL
80 mM 0.0644 mL 0.3218 mL 0.6436 mL 1.6089 mL
100 mM 0.0515 mL 0.2574 mL 0.5149 mL 1.2871 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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POBN 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:

POBN66893-81-04-POBNOthersHydrophilicspintrapfreeradicaladductsInhibitorinhibitorinhibit

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