SPR inhibitor 3
Based on 1 publication(s) in Google Scholar
SPR inhibitor 3 (SPRi3) is a potent sepiapterin reductase (SPR) inhibitor. SPR inhibitor 3 (SPRi3) displays high binding affinity to human SPR in a cell-free assay (IC50=74 nM) and efficiently reduces biopterin levels in a cell-based assay (IC50=5.2 μM). SPR inhibitor 3 (SPRi3) reduces neuropathic and inflammatory pain through a reduction of BH4 levels.
For research use only. We do not sell to patients.
- Purity: 99.01%
- CAS No.: 1292285-54-1
- Formula: C14H18N2O3
- Molecular Weight:262.30
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Storage:
-20°C, stored under nitrogen
* In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)
Publications Citing Use of MedChemExpress (MCE) SPR inhibitor 3
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Biological Activity
IC50: 74 nM (sepiapterin reductase)[1]
SPR inhibitor 3 (SPRi3) also significantly reduces SPR activity in mouse primary cultures of sensory neurons (IC50=0.45 μM) without affecting the activity of GTP cyclohydroxylase 1 enzyme (GCH1)[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 1292285-54-1
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Appearance Solid
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Molecular Weight 262.30
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Formula C14H18N2O3
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Color Off-white to gray
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SMILES
O=C(NCCC1=C(C)NC2=C1C=C(O)C=C2)COC
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Synonyms
SPRi3
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
-20°C, stored under nitrogen
* In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)
Publications (1)
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Journal Impact Factor
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Most Recent
Solvent & Solubility
DMSO : 100 mg/mL (381.24 mM; Need ultrasonic; 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 (stored under nitrogen). 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 (stored under nitrogen). 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 (9.53 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 (9.53 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. * In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)
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 (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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Handling Instructions (2659 KB)
References
[1]. Latremoliere A, et al. Reduction of Neuropathic and Inflammatory Pain through Inhibition of the Tetrahydrobiopterin Pathway. Neuron. 2015 Jun 17;86(6):1393-406. [Content Brief]
[2]. Cronin SJF, et al. The metabolite BH4 controls T cell proliferation in autoimmunity and cancer. Nature. 2018 Nov;563(7732):564-568. [Content Brief]
[3]. Haruki H, et al. Tetrahydrobiopterin Biosynthesis as a Potential Target of the Kynurenine Pathway Metabolite Xanthurenic Acid. J Biol Chem. 2016 Jan 8;291(2):652-7. [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 (stored under nitrogen). 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 | 3.8124 mL | 19.0621 mL | 38.1243 mL | 95.3107 mL |
| 5 mM | 0.7625 mL | 3.8124 mL | 7.6249 mL | 19.0621 mL | |
| 10 mM | 0.3812 mL | 1.9062 mL | 3.8124 mL | 9.5311 mL | |
| 15 mM | 0.2542 mL | 1.2708 mL | 2.5416 mL | 6.3540 mL | |
| 20 mM | 0.1906 mL | 0.9531 mL | 1.9062 mL | 4.7655 mL | |
| 25 mM | 0.1525 mL | 0.7625 mL | 1.5250 mL | 3.8124 mL | |
| 30 mM | 0.1271 mL | 0.6354 mL | 1.2708 mL | 3.1770 mL | |
| 40 mM | 0.0953 mL | 0.4766 mL | 0.9531 mL | 2.3828 mL | |
| 50 mM | 0.0762 mL | 0.3812 mL | 0.7625 mL | 1.9062 mL | |
| 60 mM | 0.0635 mL | 0.3177 mL | 0.6354 mL | 1.5885 mL | |
| 80 mM | 0.0477 mL | 0.2383 mL | 0.4766 mL | 1.1914 mL | |
| 100 mM | 0.0381 mL | 0.1906 mL | 0.3812 mL | 0.9531 mL |