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Etoposide Topoisomerase II inhibitor

Cat.No.S1225

Etoposide is a semisynthetic derivative of podophyllotoxin, which inhibits DNA synthesis via topoisomerase II inhibition activity which enhances double-strand and single-strand cleavage of DNA and reversibly inhibits repair by topoisomerase II binding. Etoposide induces autophagy, mitophagy and apoptosis.

Etoposide Antineoplastic and Immunosuppressive Antibiotics chemical Chemical Structure

Chemical Structure

Molecular Weight: 588.56

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Quality Control

Batch: Purity: 99.96%

99.96

Related Targets	HDAC PARP ATM/ATR DNA-PK WRN DNA/RNA Synthesis Topoisomerase PPAR Sirtuin Casein Kinase
Other Antineoplastic and Immunosuppressive Antibiotics Inhibitors	Staurosporine (STS) Cyclosporin A Oligomycin A (MCH 32) Puromycin Dihydrochloride Nigericin sodium salt Geldanamycin (NSC 122750) Honokiol Streptozotocin (STZ) Sodium Monensin (NSC 343257) Cephalomannine

Solubility in DMSO or Water

In vitro
Batch:

DMSO : 100 mg/mL (169.9 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

DMSO : 100 mg/mL (169.9 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

DMSO : 100 mg/mL (169.9 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

DMSO : 100 mg/mL (169.9 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

DMSO : 100 mg/mL (169.9 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

The solubility data above are all experimental results (not literature values).

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	8.000mg/ml (13.59mM)	Taking the 1 mL working solution as an example, add 50 μL of 160 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.
Clear solution	5%DMSO 1 40%PEG 300 2 5%Tween80 3 50% ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	8.000mg/ml (13.59mM)	Taking the 1 mL working solution as an example, add 50 μL of 160 mg/mL clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify; add 50 μL of Tween-80 to the above system, mix evenly to clarify; Then continue to add 500 μL ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5% DMSO 1 40% PEG 300 2 5% Tween 80 3 ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	5.000mg/ml (8.50mM)	Taking the 1 mL working solution as an example, add 50 μL of 100 mg/ml clarified DMSO stock solution to 400 μL PEG300, mix evenly to clarify it; add 50 μL Tween-80 to the above system, mix evenly to clarify it; then continue to add 500 μL ddH2O Dilute to 1 mL. The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg

Average weight of animals: g

Dosing volume per animal: μL

Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO

%

% Tween 80

% ddH₂O

% DMSO

+

%

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid 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 master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Read more about Etoposide solubility in DMSO or water

Working Concentrations for Cell Culture Treatment

Read more about Etoposide working concentrations for cell culture treatment

Working Concentrations for Animal Model Treatment

Mechanism of Action

Information	Etoposide is a potent Topoisomerase II poison. It affects p53, DDR, and ATM-Chk2 signaling by stabilizing the Topo II-DNA cleavage complex to accumulate DNA double-strand breaks, effectively inducing G2/M cell cycle arrest and apoptosis.
Read more about Etoposide IC50 for cell-based and cell-free assays
Primary Applications and Mechanism of Action

Read more about Etoposide Mechanism of Action

Chemical Information, Storage & Stability

Molecular Weight	588.56	Formula	C₂₉H₃₂O₁₃	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	33419-42-0	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	VP-16213,VP-16			Smiles	CC1OCC2C(O1)C(C(C(O2)OC3C4COC(=O)C4C(C5=CC6=C(C=C35)OCO6)C7=CC(=C(C(=C7)OC)O)OC)O)O

Read more about storage & stability

Etoposide Combination Database

Read more comparative analysis about Etoposide

Tech Support

Handling Instructions

Tel: +1-832-582-8158 Ext:3

If you have any other enquiries, please leave a message.

Frequently Asked Questions

Question 1:
Regarding the S1225, do you have any data of the inhibition specificity of this product? It will inhibit other enzymes other than TOP2A?

Answer:
According to the available published data, its inhibition is specific to TOP2A. But there're also two papers showing that it could inhibit the p34cdc2 Kinase Activity: 1. http://cancerres.aacrjournals.org/content/52/7/1817.short ; 2. http://cancerres.aacrjournals.org/content/50/12/3761.short.

Dilution Calculator

Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:

Concentration _(start) x Volume _(start) = Concentration _(final) x Volume _(final)

This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )

*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).

The Serial Dilution Calculator Equation

Serial Dilutions

Concentration (start):

Dilution-folds:

Computed Result

C1=C0/X	C1:		LOG(C1):
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C3=C2/X	C3:		LOG(C3):
C4=C3/X	C4:		LOG(C4):
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C8=C7/X	C8:		LOG(C8):