NPPB
Based on 5 publication(s) in Google Scholar
NPPB is a blocker of the outwardly rectifying chloride channel (ORCC).
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- Pureza: 99.78%
- No. CAS: 107254-86-4
- Fòrmula: C16H16N2O4
- Peso molecular:300.31
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Almacenamiento:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year
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Actividad biológica
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Chemical Information
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Solvente y solubilidad
- Protocolo
- Pureza y Documentación
- Referencias
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Publications Citing Use of MedChemExpress (MCE) NPPB
More
Actividad biológica
ORCC[1]
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| HEK293 | EC50 |
0.32 μM
Compound: NPPB
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Agonist activity at human TRPA1 expressed in HEK293 cells assessed as increase in calcium influx by FLIPR analysis
Agonist activity at human TRPA1 expressed in HEK293 cells assessed as increase in calcium influx by FLIPR analysis
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[PMID: 30878828] |
| HEK293 | EC50 |
0.6 μM
Compound: NPPB
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Agonist activity at human TRPA1 expressed in HEK293 cells assessed as increase in calcium influx by Fluo-4-AM dye based fluorescence assay
Agonist activity at human TRPA1 expressed in HEK293 cells assessed as increase in calcium influx by Fluo-4-AM dye based fluorescence assay
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[PMID: 30878828] |
| Oocyte | IC50 |
240 μM
Compound: 5-Nitro-2-(3-phenylpropylamino)benzoate
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TP_TRANSPORTER: inhibition of L-Lactate uptake (L-Lactate:30mM) in Xenopus laevis oocytes
TP_TRANSPORTER: inhibition of L-Lactate uptake (L-Lactate:30mM) in Xenopus laevis oocytes
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[PMID: 11101640] |
0.1 mM NPPB in the bath solution reduces channel open probability from 0.89±0.06 to 0.11±0.04 (n=5, P<0.01)[1]. Dose-dependent inhibition of chloride currents is observed with a 50% inhibitory concentration (IC50) of 125 μM NPPB. NPPB itself also shows cytotoxicity against glioma cells with a GI50 of approximately 500 μM[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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No. CAS 107254-86-4
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Appearance Solid
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Peso molecular 300.31
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Fòrmula C16H16N2O4
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Color Light yellow to yellow
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SMILES
O=C(O)C1=CC([N+]([O-])=O)=CC=C1NCCCC2=CC=CC=C2
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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 2 years -20°C 1 year
Publications (5)
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Journal Impact Factor
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Most Recent
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Nat Commun
In vivo imaging in mouse spinal cord reveals that microglia prevent degeneration of injured axons. [Abstract]2024 Oct 13;15(1):8837. PMID: 39397028 -
Cell Death Dis
Pictilisib and nutrient stress synergize to induce methuosis via PI(4,5)P2-dependent macropinocytic dysregulation in cancer cells. [Abstract]2026 Jun 16. PMID: 42303628 -
J Biol Chem
Nitric oxide mediates ET-1-induced-inhibition of NPPB-sensitive Cl- currents in the early distal convoluted tubule of the mouse kidney. [Abstract]2026 Jan 23;302(3):111202. PMID: 41581878 -
Biochem J
LRRC8A is responsible for exosome biogenesis and volume regulation in colon cancer cells. [Abstract]2023 May 17;480(9):701-713. PMID: 37129855 -
Solvente y solubilidad
DMSO : 100 mg/mL (332.99 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
H2O : < 0.1 mg/mL (insoluble)
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
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 (8.32 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.
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.
Protocolo
Cells are seeded in the 96-well microtiter plate at a density of 5×103 cells per well and incubated at 37°C for 24 h in a humidified 5% CO2 atmosphere. After removing the culture medium, fresh media containing various concentrations of NPPB is added, and incubated for 24 h. Next, 100 μL of Thiazolyl blue tetrazolium bromide at 0.5 mg/mL is added to each well and incubated at 37°C for 1 h. Cells are then dissolved in 100 μL of DMSO, and the absorbance is measured at 570 nm with a Microplate Reader. Concentration-response curves of NPPB are fitted to a Hill equation to obtain GI50 and GI80 (50% and 80% growth inhibition concentrations, respectively) values[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Pureza y Documentación
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Ficha de datos (275 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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Instrucciones de manejo (2659 KB)
Referencias
[1]. Li J, et al. Enhancement of an outwardly rectifying chloride channel in hippocampal pyramidal neurons after cerebral ischemia. Brain Res. 2016 Aug 1;1644:107-17. [Content Brief]
[2]. Park M, et al. Double Blockade of Glioma Cell Proliferation and Migration by Temozolomide Conjugated withNPPB, a Chloride Channel Blocker. ACS Chem Neurosci. 2016 Mar 16;7(3):275-85. [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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 3.3299 mL | 16.6495 mL | 33.2989 mL | 83.2473 mL |
| 5 mM | 0.6660 mL | 3.3299 mL | 6.6598 mL | 16.6495 mL | |
| 10 mM | 0.3330 mL | 1.6649 mL | 3.3299 mL | 8.3247 mL | |
| 15 mM | 0.2220 mL | 1.1100 mL | 2.2199 mL | 5.5498 mL | |
| 20 mM | 0.1665 mL | 0.8325 mL | 1.6649 mL | 4.1624 mL | |
| 25 mM | 0.1332 mL | 0.6660 mL | 1.3320 mL | 3.3299 mL | |
| 30 mM | 0.1110 mL | 0.5550 mL | 1.1100 mL | 2.7749 mL | |
| 40 mM | 0.0832 mL | 0.4162 mL | 0.8325 mL | 2.0812 mL | |
| 50 mM | 0.0666 mL | 0.3330 mL | 0.6660 mL | 1.6649 mL | |
| 60 mM | 0.0555 mL | 0.2775 mL | 0.5550 mL | 1.3875 mL | |
| 80 mM | 0.0416 mL | 0.2081 mL | 0.4162 mL | 1.0406 mL | |
| 100 mM | 0.0333 mL | 0.1665 mL | 0.3330 mL | 0.8325 mL |
NPPB Related Classifications
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