Name: Omecamtiv mecarbil (CK-1827452)
Brand: Selleck Chemicals
SKU: S2623
Availability: InStock
Rating: 5 (31 reviews)

Chemical Structure

Molecular Weight: 401.43

Purity & Quality Control

Batch: Purity: 99.66%

99.66

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Signaling Pathway

ATPase Signaling Pathway

Mechanism of Action

Targets

Myosin ATPase ^[1]

In vitro
In vitro	Omecamtiv mecarbil (CK-1827452) selectively activates cardiac myosin in vitro by increasing the myosin ATPase rate. ^[1] In isolated cardiac myocytes, this compound results in an increase of myocyte contractility and overcomes the myosin inhibitor BDM without increasing the calcium transient or inhibiting the PDE pathway. ^[1]

In Vivo
In vivo	Omecamtiv mecarbil (CK-1827452) significantly increases fractional shortening starting at 0.4 mM plasma concentrations in SD rats, sham animals and in rats with heart failure. ^[1] In conscious dogs with myocardial infarction (MI-sHF), this compound leads to a significant increase in wall thickening (25%), stroke volume (44%), cardiac output (22%) and left ventricular (LV) systolic ejection time (26%). In addition, it also results in the decreases of some hemodynamic parameters including heart rate, mean left atrial pressure, and LV end-diastolic pressure. In conscious dogs with left ventricular hypertrophy (LVH-sHF), Omecamtiv mecarbil leads to similar and not statistically different effects on hemodynamic parameters. ^[2]
Animal Research	Animal Models	Sprague Dawley rats.
	Dosages	≤1.2 mg/kg/hour
	Administration	Administered via i.v.

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
Clinical Trial Information (data from https://clinicaltrials.gov, updated on 2024-05-22)
NCT04464525	Withdrawn	Chronic Heart Failure With Reduced Ejection Fraction	Cytokinetics	December 18 2020	Phase 3
NCT02601001	Completed	Healthy Volunteer	Cytokinetics	November 13 2015	Phase 1
NCT01300013	Completed	Heart Failure	Cytokinetics	April 2011	Phase 2
NCT01077167	Withdrawn	Heart Failure	Cytokinetics	July 2010	Phase 2

References

http://www.cytokinetics.com/pdf/ASCB_1728.pdf
https://pubmed.ncbi.nlm.nih.gov/20498236/

Chemical Information

Molecular Weight	401.43	Formula	C₂₀H₂₄FN₅O₃
CAS No.	873697-71-3	SDF	Download SDF
Synonyms	N/A
Smiles	CC1=NC=C(C=C1)NC(=O)NC2=CC=CC(=C2F)CN3CCN(CC3)C(=O)OC

Storage and Stability

Storage (From the date of receipt)	3 years-20°Cpowder	Storage of Stock Solutions Aliquot the stock solutions to avoid repeated freeze-thaw cycles	1 year-80°Cin solvent
			1 month-20°Cin solvent

In vitro
Batch:

DMSO : 80 mg/mL ( (199.28 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 6 mg/mL

Water : Insoluble

Molecular Weight Calculator

In vivo Batch: Add solvents to the product individually and in order.				In vivo Formulation Calculator
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.
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.

Preparing Stock Solutions

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
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Dilution Calculator Molecular Weight Calculator

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.

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

Tel: +1-832-582-8158 Ext:3
If you have any other enquiries, please leave a message.

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Frequently Asked Questions

Question 1:
We would like to know the half-life of S2623, could you please provide some information?

Answer:
In a press release from cytokinetics (http://www.cytokinetics.com/press_releases/release/pr_1133989715), the company claimed that CK-1827452 has a sufficiently long half-life to support oral dosing. In a later press release (http://www.cytokinetics.com/press_releases/release/pr_1213309188), cytokinetics updated clinical trail result and mentioned that the elimination half-life of CK-1827452 is 22 hours.

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Omecamtiv mecarbil (CK-1827452) ATPase activator