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Hydroxy Camptothecine Topoisomerase inhibitor

Name: Hydroxy Camptothecine
Brand: Selleck Chemicals
SKU: S3898
Availability: InStock
Rating: 5 (2 reviews)

Cat.No.S3898

Hydroxy Camptothecine (10-Hydroxycamptothecin, Hydroxycamptothecine) is a cell-permeable powerful DNA topoisomerase I inhibitor. It has selective inhibitory effect on the phosphorylation of histone H1 and H3, but less effect on other histones.

Chemical Structure

Molecular Weight: 364.35

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Quality Control

Batch: Purity: 99.69%

99.69

Related Targets	HDAC PARP ATM/ATR DNA-PK WRN DNA/RNA Synthesis PPAR Sirtuin Casein Kinase eIF
Other Topoisomerase Inhibitors	Camptothecin (CPT) Betulinic acid Beta-Lapachone (S)-10-Hydroxycamptothecin Amonafide Ellagic acid Voreloxin (SNS-595) hydrochloride Cu(II)-Elesclomol Rubitecan Genz-644282

Solubility

In vitro
Batch:

DMSO : 19 mg/mL (52.14 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

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.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	0.300mg/ml (0.82mM)	Taking the 1 mL working solution as an example, add 50 μL of 6 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	0.300mg/ml (0.82mM)	Taking the 1 mL working solution as an example, add 50 μL of 6 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.
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.

Chemical Information, Storage & Stability

Molecular Weight	364.35	Formula	C₂₀H₁₆N₂O₅	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	64439-81-2	--		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	10-Hydroxycamptothecin, Hydroxycamptothecine			Smiles	CCC1(C2=C(COC1=O)C(=O)N3CC4=C(C3=C2)N=C5C=CC(=CC5=C4)O)O

Mechanism of Action

Targets/IC₅₀/Ki	DNA topoisomerase I
In vitro	10-HCPT has an inhibitory effect on phosphorylation of histone H1 and H3 in murine hepatoma cells and also exhibits a differentiation inducing effect in human HepG2 cells. 10-HCPT inhibits the cell growth, reduces the cell viability and disturbs the cell cycle distribution of human colon cancer cell line Colo 205. It induces cell cycle arrest in the G2/M phase.
In vivo	10-HCPT can be safely orally administered and, alternatively, a low-dose long-term treatment. Prolonged elimination of HCPT in vivo may have a significant impact on its therapeutic effects. HCPT is metabolized to its carboxylate form and glucuronides. Dose-dependent toxicity is observed with i.v. administration of HCPT.
References	[1] https://pubmed.ncbi.nlm.nih.gov/16596197/ [2] https://pubmed.ncbi.nlm.nih.gov/9488594/

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Handling Instructions

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