4-Hydroxyantipyrine
Based on 1 Customer Validation
4-Hydroxyantipyrine (4-Hydroxyphenazone; NSC 174055) is the major metabolite of Antipyrine (HY-B0171), can be as a biodistribution promoter. 4-Hydroxyantipyrine can increase distribution of concentration ratio of Citicoline and Antipyrine in the brain.
For research use only. We do not sell to patients.
- Purity: 99.9%
- CAS No.: 1672-63-5
- Formula: C11H12N2O2
- Molecular Weight:204.23
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
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Metabolism/Protease Compound Library
HY-L012
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Drug Metabolite Library
HY-L098
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Human Metabolite Library
HY-L123
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Inflammasomes related Compound Library
HY-L175
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Bioactive Compound Library Max
HY-L181
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MCE Bioactive Compound Library
HY-L001V
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Bioactive Compound Library
HY-L001
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High-Throughput Bioactive Compound Library
HY-L205
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Mass Spectrometry Human Metabolite Library
HY-L215
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MCE Kinase Hinge Binder Fragment Library
HY-L907
Biological Activity
4-Hydroxyantipyrine increase the tissue-to-plasma concentration ratio of Citicoline in the brain and liver and that of thiopental sodium in the brain, liver, and heart[1].
4-Hydroxyantipyrine enhances the blood-brain barrier (BBB) permeability of Antipyrine considering to be concerned with the increase of the Kp value of Antipyrine in the brain[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 1672-63-5
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Appearance Solid
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Molecular Weight 204.23
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Formula C11H12N2O2
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Color Light yellow to yellow
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SMILES
O=C1N(C2=CC=CC=C2)N(C)C(C)=C1O
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Synonyms
4-Hydroxyphenazone; NSC 174055
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Solvent & Solubility
DMSO : 50 mg/mL (244.82 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
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 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 2.5 mg/mL (12.24 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.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.5 mg/mL (12.24 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.
Purity & Documentation
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Data Sheet (274 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[1]. Ohkawa Y, et al. Effects of 4-hydroxyantipyrine and its 4-O-sulfate on antipyrine as biodistribution promoter. Biol Pharm Bull. 2001 May;24(5):529-34. [Content Brief]
[2]. Ohkawa Y, et al. Application of 4-hydroxyantipyrine and acetaminophen O-sulfate as biodistribution promoter. Biol Pharm Bull. 2001 Dec;24(12):1404-10. [Content Brief]
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 | 1 mM | 4.8964 mL | 24.4822 mL | 48.9644 mL | 122.4110 mL |
| 5 mM | 0.9793 mL | 4.8964 mL | 9.7929 mL | 24.4822 mL | |
| 10 mM | 0.4896 mL | 2.4482 mL | 4.8964 mL | 12.2411 mL | |
| 15 mM | 0.3264 mL | 1.6321 mL | 3.2643 mL | 8.1607 mL | |
| 20 mM | 0.2448 mL | 1.2241 mL | 2.4482 mL | 6.1206 mL | |
| 25 mM | 0.1959 mL | 0.9793 mL | 1.9586 mL | 4.8964 mL | |
| 30 mM | 0.1632 mL | 0.8161 mL | 1.6321 mL | 4.0804 mL | |
| 40 mM | 0.1224 mL | 0.6121 mL | 1.2241 mL | 3.0603 mL | |
| 50 mM | 0.0979 mL | 0.4896 mL | 0.9793 mL | 2.4482 mL | |
| 60 mM | 0.0816 mL | 0.4080 mL | 0.8161 mL | 2.0402 mL | |
| 80 mM | 0.0612 mL | 0.3060 mL | 0.6121 mL | 1.5301 mL | |
| 100 mM | 0.0490 mL | 0.2448 mL | 0.4896 mL | 1.2241 mL |
4-Hydroxyantipyrine Related Classifications
HY-B2150 Related Classifications
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