1. Metabolic Enzyme/Protease
  2. Phosphodiesterase (PDE)
  3. TDP1 Inhibitor-2

TDP1 Inhibitor-2 (compound 5) is a potent inhibitor for TDP1 (tyrosyl-DNA phosphodiesterase 1), with an IC50 of 99 nM. TDP1 Inhibitor-2 also can inhibit SCAN1 (spinocerebellar ataxia syndrome with axonal neuropathy), with an IC50 of 3.5 μM.

For research use only. We do not sell to patients.

TDP1 Inhibitor-2 Chemical Structure

TDP1 Inhibitor-2 Chemical Structure

CAS No. : 859142-95-3

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5 mg USD 625 In-stock
10 mg USD 1000 In-stock
25 mg USD 2100 In-stock
50 mg USD 3360 In-stock
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Description

TDP1 Inhibitor-2 (compound 5) is a potent inhibitor for TDP1 (tyrosyl-DNA phosphodiesterase 1), with an IC50 of 99 nM. TDP1 Inhibitor-2 also can inhibit SCAN1 (spinocerebellar ataxia syndrome with axonal neuropathy), with an IC50 of 3.5 μM[1].

IC50 & Target

IC50: 0.099 ± 0.044 μM (TDP1), 3.5 ± 2.3 μM (SCAN1)[1]

In Vitro

TDP1 Inhibitor-2 (compound 5) shows potent anti-TDP1 activity, low cytotoxicity and synergism with topotecan, an established Top1 anticancer agent[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Molecular Weight

465.28

Formula

C25H14Cl2O5

CAS No.
Appearance

Solid

Color

White to yellow

SMILES

ClC1=CC=CC(Cl)=C1COC2=CC=C(C(C3=CC(C=CC=C4)=C4OC3=O)=CC(O5)=O)C5=C2

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 8.33 mg/mL (17.90 mM; ultrasonic and warming and heat to 80°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.1492 mL 10.7462 mL 21.4924 mL
5 mM 0.4298 mL 2.1492 mL 4.2985 mL
View the 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. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

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.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: 0.83 mg/mL (1.78 mM); Clear solution; Need ultrasonic

    This protocol yields a clear solution of 0.83 mg/mL. If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (8.3 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
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
References

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. 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 2.1492 mL 10.7462 mL 21.4924 mL 53.7311 mL
5 mM 0.4298 mL 2.1492 mL 4.2985 mL 10.7462 mL
10 mM 0.2149 mL 1.0746 mL 2.1492 mL 5.3731 mL
15 mM 0.1433 mL 0.7164 mL 1.4328 mL 3.5821 mL
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Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Product Name:
TDP1 Inhibitor-2
Cat. No.:
HY-147750
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