Oxazolone
Based on 1 Customer Validation
Oxazolone is a haptenizing agent that induces acute or chronic inflammation of the large intestine and is used to construct models of colitis. Oxazolone can cause Th1/Th2-dependent colitis with weight loss and diarrhea. Oxazolone-induced inflammation can be mitigated by neutralizing anti-IL-4 or anti-TNF-α antibodies or decoy IL-13R2-α-FC proteins.
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- Pureza: 98.0%
- No. CAS: 15646-46-5
- Fòrmula: C12H11NO3
- Peso molecular:217.22
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Almacenamiento:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
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Actividad biológica
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Chemical Information
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Solvente y solubilidad
- Pureza y Documentación
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Actividad biológica
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IL-4 |
IL-13 |
TNFR1 |
Please do not refer to only one article to determine the experimental conditions. It is recommended to determine the optimal experimental conditions (animal strain, age, dosage, frequency and cycle, detection time and indicators, etc.) through preliminary experiments before the formal experiment.
Colitis induction[1]
1.Prepare procedure
Preparation of sensitization solution (I):
Mix acetone and olive oil in a 4:1 v/v ratio by vortexing. Dissolve a 60 mg oxazolone in 2 mL of this solution to obtain a 3 % (w/v) oxazolone sensitization solution. Mix the solution by carefully vortexing.
Preparation of challenge solution (II):
Dissolve 20 mg Oxazolone in 2 mL of 50 % ethanol to obtain a 1 % (w/v) solution. Mix the solution by careful vortexing. The oxazolone powder should be completely dissolved before use.
2. Experimental procedure
Sensitization pretreatment:
The electric scissors scraped an area of about 2 cmx2 cm on the skin of the mice's backs. Be careful to avoid open wounds.
Apply 150 μL of sensitizing solution (working solution 1) to the exposed skin of mice. Be careful to use an Oxazolone-free sensitizer as a control. Induction treatment:
Anesthetized mice: intraperitoneally injected ketamine/thiazide solution (80 μL/10 g), or inhaled with isoflurane anesthesia system.
The catheter was inserted into the colon of the mice (about 3-4 cm deep at the proximal end of the anus). The other end of the catheter is connected to a 1 mL syringe.
About 100 μL of oxazolone stimulation solution is injected into the colonic cavity through a catheter for 10 to 30 seconds. After dosing, hold the mouse in a vertical position (head down) for 60 seconds.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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No. CAS 15646-46-5
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Appearance Solid
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Peso molecular 217.22
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Fòrmula C12H11NO3
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Color Gray to brown
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SMILES
O=C(OC(C1=CC=CC=C1)=N/2)C2=C/OCC
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Envío
Room temperature in continental US; may vary elsewhere.
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Almacenamiento
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Solvente y solubilidad
DMSO : 100 mg/mL (460.36 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
50% Ethanol in Water : 10 mg/mL (46.04 mM; Need ultrasonic)
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.
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.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.5 mg/mL (11.51 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.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
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).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL.
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
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.
Pureza y Documentación
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Ficha de datos (274 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
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Instrucciones de manejo (2659 KB)
Referencias
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 |
|---|---|---|---|---|---|
| 50% Ethanol in Water / DMSO | 1 mM | 4.6036 mL | 23.0181 mL | 46.0363 mL | 115.0907 mL |
| 5 mM | 0.9207 mL | 4.6036 mL | 9.2073 mL | 23.0181 mL | |
| 10 mM | 0.4604 mL | 2.3018 mL | 4.6036 mL | 11.5091 mL | |
| 15 mM | 0.3069 mL | 1.5345 mL | 3.0691 mL | 7.6727 mL | |
| 20 mM | 0.2302 mL | 1.1509 mL | 2.3018 mL | 5.7545 mL | |
| 25 mM | 0.1841 mL | 0.9207 mL | 1.8415 mL | 4.6036 mL | |
| 30 mM | 0.1535 mL | 0.7673 mL | 1.5345 mL | 3.8364 mL | |
| 40 mM | 0.1151 mL | 0.5755 mL | 1.1509 mL | 2.8773 mL | |
| DMSO | 50 mM | 0.0921 mL | 0.4604 mL | 0.9207 mL | 2.3018 mL |
| 60 mM | 0.0767 mL | 0.3836 mL | 0.7673 mL | 1.9182 mL | |
| 80 mM | 0.0575 mL | 0.2877 mL | 0.5755 mL | 1.4386 mL | |
| 100 mM | 0.0460 mL | 0.2302 mL | 0.4604 mL | 1.1509 mL |
Oxazolone Related Classifications
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