1. Cell Cycle/DNA Damage
  2. Topoisomerase
  3. Topoisomerase I inhibitor 8

Topoisomerase I inhibitor 8 is a potent topoisomerase I inhibitor. Topoisomerase I inhibitor 8 is a hexacyclic analogue of camptothecin, and displays cytotoxic effect against tumor cells.

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

Topoisomerase I inhibitor 8 Chemical Structure

Topoisomerase I inhibitor 8 Chemical Structure

CAS No. : 210346-40-0

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Based on 1 publication(s) in Google Scholar

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Description

Topoisomerase I inhibitor 8 is a potent topoisomerase I inhibitor. Topoisomerase I inhibitor 8 is a hexacyclic analogue of camptothecin, and displays cytotoxic effect against tumor cells[1].

IC50 & Target

Topoisomerase I

 

In Vitro

Topoisomerase I inhibitor 8 (compound 57) shows antitumor activities against three cell line cultures with IC50s of 0.22 ng/mL (P388), 2.06 ng/mL (HOC-21), 0.17 ng/mL (QG-56), respectively[1].
Topoisomerase I inhibitor 8 results the change in DNA from the supercoiled form to the relaxed form in the presence of topoisomerase I, shows stronger effective than SN-38 (HY-13704), with IC50 of compound/IC50 of SN-38=0.51[1].

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

Molecular Weight

420.43

Formula

C24H21FN2O4

CAS No.
Appearance

Solid

Color

Light yellow to brown

SMILES

CC1=C(F)C=C2C3=C1CCCC3=C4C(C(N5C4)=CC([C@](CC)(O)C(OC6)=O)=C6C5=O)=N2

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (118.93 mM; Need ultrasonic; 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 2.3785 mL 11.8926 mL 23.7852 mL
5 mM 0.4757 mL 2.3785 mL 4.7570 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 (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

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  • Dilution Calculator

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

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

This equation is commonly abbreviated as: C1V1 = C2V2

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In Vivo Dissolution Calculator
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Working solution concentration: mg/mL
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 (sealed storage, away from moisture). 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 2.3785 mL 11.8926 mL 23.7852 mL 59.4629 mL
5 mM 0.4757 mL 2.3785 mL 4.7570 mL 11.8926 mL
10 mM 0.2379 mL 1.1893 mL 2.3785 mL 5.9463 mL
15 mM 0.1586 mL 0.7928 mL 1.5857 mL 3.9642 mL
20 mM 0.1189 mL 0.5946 mL 1.1893 mL 2.9731 mL
25 mM 0.0951 mL 0.4757 mL 0.9514 mL 2.3785 mL
30 mM 0.0793 mL 0.3964 mL 0.7928 mL 1.9821 mL
40 mM 0.0595 mL 0.2973 mL 0.5946 mL 1.4866 mL
50 mM 0.0476 mL 0.2379 mL 0.4757 mL 1.1893 mL
60 mM 0.0396 mL 0.1982 mL 0.3964 mL 0.9910 mL
80 mM 0.0297 mL 0.1487 mL 0.2973 mL 0.7433 mL
100 mM 0.0238 mL 0.1189 mL 0.2379 mL 0.5946 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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Topoisomerase I inhibitor 8
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HY-148058
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