yingweiwo

N3PT

Cat No.:V33026 Purity: ≥98%
N3PT (N3-pyridyl thiamine) is a transketolase inhibitor.
N3PT
N3PT Chemical Structure CAS No.: 13860-66-7
Product category: New2
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
1mg
5mg
10mg
50mg
Other Sizes
Official Supplier of:
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text
Alternate Text

 

  • Business Relationship with 5000+ Clients Globally
  • Major Universities, Research Institutions, Biotech & Pharma
  • Citations by Top Journals: Nature, Cell, Science, etc.
Top Publications Citing lnvivochem Products
Product Description
N3PT (N3-pyridyl thiamine) is a transketolase inhibitor. N3PT binds transketolase via pyrophosphorylation, with Kd of 22 nM for the absence of bound thiamine transketolase (Apo-TK).
Biological Activity I Assay Protocols (From Reference)
ln Vitro
In HCT-116 cells, N3PT (Compound 1) has an average human EC50 value of 26 nM transketolase [1]. N3PT (1 ppm or 5 ppm) does not decrease the activity of NADPH-containing phosphate-6-phosphate dehydrogenase (G6PD), but instead significantly inhibits the activity of the thiamine utilization enzyme [1].
ln Vivo
In HCT-116 tumor-bearing nude mice, N3PT (Compound 1) (100 mg/kg; iv; twice daily; 2 weeks) demonstrated reduction of transaminolase activity but no discernible anticancer action [ 1
Animal Protocol
Animal/Disease Models: HCT-116 tumor-bearing nude mice [1]
Doses: 100 mg/kg
Route of Administration: intravenous (iv) (iv)injection; ]. twice (two times) daily; 2-week
Experimental Results: Transketolase activity diminished but had no significant effect on tumor size. An alternative pathway for the production of ribose for DNA synthesis was shown to exist in these tumor cell lines.
References

[1]. Synthesis, in vitro and in vivo activity of thiamine antagonist transketolase inhibitors. Bioorg Med Chem Lett. 2008 Mar 15;18(6):2206-10.

[2]. Jeno Gyuris, May Han, Ronan C, N3-pyridyl-thiamine and its use in cancer treatments. Patent Numeber: WO2005094803 A2.

[3]. Allen A. Thomas, Josh Ballard, Bryan Bernat. Potent and Selective Thiamine Antagonists That Inhibit Transketolase.

[4]. Thomas AA, De Meese J, Le Huerou Y, Non-charged thiamine analogs as inhibitors of enzyme transketolase. Bioorg Med Chem Lett. 2008 Jan 15;18(2):509-12.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C13H18N3OS+.CL-.HCL
Molecular Weight
336.28
Exact Mass
335.063
CAS #
13860-66-7
PubChem CID
66970987
Appearance
Light yellow to yellow solid powder
Hydrogen Bond Donor Count
3
Hydrogen Bond Acceptor Count
5
Rotatable Bond Count
4
Heavy Atom Count
20
Complexity
267
Defined Atom Stereocenter Count
0
InChi Key
ZLGKCAQWOASSTP-UHFFFAOYSA-M
InChi Code
InChI=1S/C13H18N3OS.2ClH/c1-9-3-4-11(13(14)15-9)7-16-8-18-12(5-6-17)10(16)2;;/h3-4,8,17H,5-7H2,1-2H3,(H2,14,15);2*1H/q+1;;/p-1
Chemical Name
2-[3-[(2-amino-6-methylpyridin-3-yl)methyl]-4-methyl-1,3-thiazol-3-ium-5-yl]ethanol;chloride;hydrochloride
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

Note: Please store this product in a sealed and protected environment, avoid exposure to moisture.
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 : ~2.86 mg/mL (~8.50 mM)
Solubility (In Vivo)
Solubility in Formulation 1: 8 mg/mL (23.79 mM) in 45% PEG300 +5% Tween-80 + 50% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution; with sonication.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.9737 mL 14.8686 mL 29.7371 mL
5 mM 0.5947 mL 2.9737 mL 5.9474 mL
10 mM 0.2974 mL 1.4869 mL 2.9737 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:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
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?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • 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)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • 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
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
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.
/

Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
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.)
+
+
+

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.

Contact Us