Home Tools
Log in


Catalog No. T3757   CAS 130089-98-4

NQ301, an antithrombotic agent, inhibits collagen-challenged rabbit platelet aggregation (IC50: 10 mg/mL).

All products from TargetMol are for Research Use Only. Not for Human or Veterinary or Therapeutic Use.
NQ301 Chemical Structure
NQ301, CAS 130089-98-4
Pack Size Availability Price/USD Quantity
5 mg In stock $ 53.00
10 mg In stock $ 77.00
25 mg In stock $ 126.00
50 mg In stock $ 207.00
100 mg In stock $ 369.00
500 mg In stock $ 885.00
1 mL * 10 mM (in DMSO) In stock $ 57.00
Bulk Inquiry
Get quote
Select Batch  
Purity: 99.81%
Purity: 99.76%
Contact us for more batch information
Biological Description
Chemical Properties
Storage & Solubility Information
Description NQ301, an antithrombotic agent, inhibits collagen-challenged rabbit platelet aggregation (IC50: 10 mg/mL).
Targets&IC50 collagen-challenged rabbit platelet aggregation:10 mg/mL
In vitro NQ301 dose-dependently inhibits collagen (10 mg/mL, IC50: 0.60±0.02 μM), U46619 (1 mg/mL, IC50: 0.58±0.04 μM) and arachidonic acid (100 mg/mL, IC50: 0.78±0.04 μM) challenged rabbit platelet aggregation. NQ301 potently suppresses thromboxane B2 formation by platelets that are exposed to arachidonic acid in a concentration-dependent manner, but had no effect on the production of prostaglandin D2, indicating an inhibitory effect on thromboxane A2 synthase. NQ301 markedly inhibits the increase of cytosolic Ca2+ concentration and ATP secretion, and also markedly increases platelet cAMP levels in the activated platelets. The antiplatelet activity of NQ301 may be mediated by inhibition of cytosolic Ca2+ mobilization, enhancement of cAMP production and inhibition of ATP secretion in activated platelets.
Kinase Assay Compounds are dissolved in DMSO (5 mg/mL) and diluted with PBS/EtOH (70:30).Kinetic analyses are carried out for TB5 and TB8. A set of Lineweaver–Burk plots are constructed in the absence and presence of various concentrations of compounds TB5 and TC8. The set consists of five graphs, each constructed by measuring MAO-B and MAO-A catalytic rates at different substrate concentrations (0.1-1 μM). The first Lineweaver–Burk plot is constructed in the absence of inhibitor, while the remaining four graphs are constructed in the presence of different concentrations of TB5 and TB8[1].
Cell Research ished rabbit platelet suspension is challenged by addition of collagen (10 mg/mL), arachidonic acid (100 μM) or U46619 (1 μM). Concentration- response relationship is determined in the absence or presence of a range of concentrations of NQ301 (0, 0.25, 0.5, 0.75, 1 μM); aspirin-treated platelets (50 μM for 5 min) are used to prevent any possible contribution of endogenous arachidonic acid metabolites to platelet aggregation. The resulting aggregation, measured as the change in light transmission, is recorded for 5 min. The extent of platelet aggregation is expressed as % of the control[1].
Molecular Weight 325.75
Formula C18H12ClNO3
CAS No. 130089-98-4


Powder: -20°C for 3 years | In solvent: -80°C for 1 year

Solubility Information

DMSO: 29 mg/mL

TargetMolReferences and Literature

1. Jin YR, et al. An antithrombotic agent, NQ301, inhibits thromboxane A2 receptor and synthase activity in rabbit platelets. Basic Clin Pharmacol Toxicol. 2005 Sep;97(3):162-7. 2. Zhang YH, et al. Antiplatelet effect of 2-chloro-3-(4-acetophenyl)-amino-1,4-naphthoquinone (NQ301): a possible mechanism through inhibition of intracellular Ca2+ mobilization. Biol Pharm Bull. 2001 Jun;24(6):618-22.

Related compound libraries

This product is contained In the following compound libraries:
Anti-Cardiovascular Disease Compound Library Coagulation and Anticoagulation Compound Library Protease Inhibitor Library Anti-Metabolism Disease Compound Library Immunology/Inflammation Compound Library Bioactive Compounds Library Max Bioactive Compound Library Preclinical Compound Library Endocrinology-Hormone Compound Library

Related Products

Related compounds with same targets
Dabigatran ethyl ester Bivalirudin NFPS Hirullin P18 Z-Gly-Pro-Arg-4MβNA Succinyl-(Pro58,D-Glu65)-Hirudin (56-65) (sulfated) TFLLRNPNDK-NH2 Thrombin receptor peptide ligand

TargetMolDose Conversion

You can also refer to dose conversion for different animals. More

TargetMol In vivo Formulation Calculator (Clear solution)

Step One: Enter information below
Average weight of animals
Dosing volume per animal
Number of animals
Step Two: Enter the in vivo formulation
% Tween 80
% ddH2O
Calculate Reset


Molarity Calculator
Dilution Calculator
Reconstitution Calculation
Molecular Weight Calculator

Molarity Calculator allows you to calculate the

  • Mass of a compound required to prepare a solution of known volume and concentration
  • Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Concentration of a solution resulting from a known mass of compound in a specific volume
See Example

An example of a molarity calculation using the molarity calculator
What is the mass of compound required to make a 10 mM stock solution in 10 ml of water given that the molecular weight of the compound is 197.13 g/mol?
Enter 197.13 into the Molecular Weight (MW) box
Enter 10 into the Concentration box and select the correct unit (millimolar)
Enter 10 into the Volume box and select the correct unit (milliliter)
Press calculate
The answer of 19.713 mg appears in the Mass box


Calculator the dilution required to prepare a stock solution

Calculate the dilution required to prepare a stock solution
The dilution calculator is a useful tool which allows you to calculate how to dilute a stock solution of known concentration. Enter C1, C2 & V2 to calculate V1.

See Example

An example of a dilution calculation using the Tocris dilution calculator
What volume of a given 10 mM stock solution is required to make 20ml of a 50 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=50 μM, V2=20 ml and V1 is the unknown:
Enter 10 into the Concentration (start) box and select the correct unit (millimolar)
Enter 50 into the Concentration (final) box and select the correct unit (micromolar)
Enter 20 into the Volume (final) box and select the correct unit (milliliter)
Press calculate
The answer of 100 microliter (0.1 ml) appears in the Volume (start) box


Calculate the volume of solvent required to reconstitute your vial.

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial.
Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Enter the chemical formula of a compound to calculate its molar mass and elemental composition

Tip: Chemical formula is case sensitive: C10H16N2O2 c10h16n2o2

Instructions to calculate molar mass (molecular weight) of a chemical compound:
To calculate molar mass of a chemical compound, please enter its chemical formula and click 'Calculate'.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed n 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.


Tech Support

Please see Inhibitor Handling Instructions for more frequently ask questions. Topics include: how to prepare stock solutions, how to store products, and cautions on cell-based assays & animal experiments, etc.


NQ301 130089-98-4 Others Proteases/Proteasome Thrombin Platelet aggregation inhibit Inhibitor NQ 301 NQ-301 inhibitor