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NK-252

Cat No.:V10750 Purity: ≥98%
NK-252 is a potential Nrf2 activator with good Nrf2 activation ability.
NK-252
NK-252 Chemical Structure CAS No.: 1414963-82-8
Product category: New1
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
25mg
50mg
100mg
250mg
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Product Description
NK-252 is a potential Nrf2 activator with good Nrf2 activation ability.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
The Huh-7.5 cells treated with oltipraz (OPZ) or NK-252 exhibited dose-dependent activation of NAD (P) H quinone oxidoreductase 1 (NQO1)-ARE as evidenced by luciferase activity. Based on the fact that NK-252 exhibits a higher potency for this effect than OPZ, NK-252's EC2 value (concentration induced by two times above background) is 1.36 μM, while OPZ's is 20.8 μM, determined by linearly extrapolating values above and below the induction threshold. NK-252 may function in hepatocytes as a Nrf2 activator. It has been documented that prototypic Nrf2 activators, such as OPZ, shield microglia from the cytotoxicity caused by H2O2. Huh-7 cells were used to assess the antioxidant qualities of OPZ and NK-252 in relation to their ability to protect against H2O2-induced cytotoxicity. When OPZ or NK-252 are applied to cells, they enhance their resistance against H2O2-induced cytotoxicity in comparison to control cells [1].
ln Vivo
When compared to CDAA control rats, animals on a choline-deficient L-amino acid-defining (CDAA) diet administered OPZ or NK-252 had lower fibrosis scores, with a median score of 3, indicating bridging fibrosis. When compared to rats fed a normal control diet (naïve), the liver fibrosis area in CDAA control rats was nearly 20 times larger (14.7 vs. 0.72%, respectively). by giving either NK-252 or OPZ (5.80% of NK-252_high, 6.20% of NK-252_low, and 4.97% of OPZ). Dose-dependent effects of NK-252 are observed on fibrosis area and score [1]. P388/S and P388/VCR mice showed no anticancer effect from NK-252 alone. When NK-252 was given orally in addition to Etoposide, the mice that were intraperitoneally injected with P388/S lived much longer when compared to when Etoposide was used alone. When compared to the comparable survival time of Etoposide alone, the combined treatment of NK-252 and Etoposide considerably increased the lifespan of mice intraperitoneally vaccinated with P388/VCR [2].
References

[1]. Nrf2 activators attenuate the progression of nonalcoholic steatohepatitis-related fibrosis in a dietary rat model. Mol Pharmacol. 2013 Jul, 84(1):62-70.

[2]. Enhancement of antitumour activity of etoposide by dihydropyridines on drug-sensitive and drug-resistant leukaemia in mice. Br J Cancer. 1991 Aug;64(2):221-6.

Additional Infomation
See also: NK 252 (Note moved to).
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C13H11N5O3
Molecular Weight
285.2581
Exact Mass
285.086
CAS #
1414963-82-8
PubChem CID
71618700
Appearance
White to off-white solid powder
LogP
2.51
Hydrogen Bond Donor Count
2
Hydrogen Bond Acceptor Count
6
Rotatable Bond Count
4
Heavy Atom Count
21
Complexity
357
Defined Atom Stereocenter Count
0
InChi Key
FNSCFQXZZNCDAI-UHFFFAOYSA-N
InChi Code
InChI=1S/C13H11N5O3/c19-12(15-8-9-4-1-2-6-14-9)16-13-18-17-11(21-13)10-5-3-7-20-10/h1-7H,8H2,(H2,15,16,18,19)
Chemical Name
1-[5-(furan-2-yl)-1,3,4-oxadiazol-2-yl]-3-(pyridin-2-ylmethyl)urea
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ≥ 29 mg/mL (~101.66 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.08 mg/mL (7.29 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.08 mg/mL (7.29 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.08 mg/mL (7.29 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 3.5056 mL 17.5279 mL 35.0557 mL
5 mM 0.7011 mL 3.5056 mL 7.0111 mL
10 mM 0.3506 mL 1.7528 mL 3.5056 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
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  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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