Catalog No. size PriceQuantity
M6420-2 2mg solid $100
M6420-10 10mg solid $396



Product Information

CK-1827452 is a cardiac specific myosin activator. It is clinically tested for its role in the treatment of left ventricular systolic heart failure. Omecamtiv Mecarbil specifically targets and activates myocardial ATPase and improves energy utilization. Omecamtiv Mecarbil improves systolic function by increasing the systolic ejection duration/stroke volume, without consuming more ATP energy, oxygen or altering intracellular calcium levels causing an overall improvement in cardiac efficiency.


Chemical Formula: C20H24FN5O3


Exact Mass: 401.1863


Molecular Weight: 401.43


Elemental Analysis: C, 59.84; H, 6.03; F, 4.73; N, 17.45; O, 11.96




Omecamtiv mecarbil


CK 1827452



Chemical Name: 



InChi Key: 



InChi Code: InChI=1S/C20H24FN5O3/c1-14-6-7-16(12-22-14)23-19(27)24-17-5-3-4-15(18(17)21)13-25-8-10-26(11-9-25)20(28)29-2/h3-7,12H,8-11,13H2,1-2H3,(H2,23,24,27)


Smiles Code:




Technical Data:


Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO, not in water

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001


In Vitro

Omecamtiv mecarbil (10 μM) reduces the maximal ATPase (kcat) 4.5-fold and dramatically reduces the actin concentration at which ATPase is half-maximal (KATPase) 30-fold. The Omecamtiv mecarbil-induced inhibition of the actin-activated ATPase is evaluated in a concentration-dependent manner to determine the EC50 (0.52 ± 0.10 μM). Omecamtiv mecarbil does not change the overall actin affinity. Omecamtiv mecarbil traps a population of myosin heads in a weak actin affinity state with slow product release. Omecamtiv mecarbil can reduce the actin sliding velocity more than 100-fold in the in vitro motility assay.


In Vivo

Omecamtiv mecarbil (100-1000 ng/mL) demonstrates concentration-dependent increases in FS in Sprague−Dawley rats model. Omecamtiv mecarbil demonstrates good PK parameters in both rats (Sprague−Dawley) and dogs (Beagle) with clearances of 22 and 7.2 mL/min/kg, volumes of 3.5 and 3.6 L/kg, and bioavailabilities (F%) of 100 and 80%, respectively. Omecamtiv mecarbil does not affect the phosphorylation status of myofilament proteins in both WT and KO hearts as shown by the absence of significant differences between pre and post Omecamtiv mecarbil samples within WT and KO groups, or affect the force generation at maximal Ca2+ activation (pCa 4.5) in any of the groups. Omecamtiv mecarbil increases the responsiveness of the cardiac myofilaments to Ca2+ at submaximal Ca2+-activations.





  1. Spinarova L, Spinar J. Pharmacotherapy of dilated cardiomyopathy. Curr Pharm Des. 2014;21(4):449-58. PubMed PMID: 25483945.


  1. Greenberg BH, Chou W, Saikali KG, Escandón R, Lee JH, Chen MM, Treshkur T, Megreladze I, Wasserman SM, Eisenberg P, Malik FI, Wolff AA, Shaburishvili T. Safety and Tolerability of Omecamtiv Mecarbil During Exercise in Patients With Ischemic Cardiomyopathy and Angina. JACC Heart Fail. 2014 Nov 11. pii: S2213-1779(14)00379-5. doi: 10.1016/j.jchf.2014.07.009. [Epub ahead of print] PubMed PMID: 25453536.


  1. McNeice AH, McAleavey NM, Menown IB. Advances in clinical cardiology. Adv Ther. 2014 Aug;31(8):837-60. doi: 10.1007/s12325-014-0141-9. Epub 2014 Jul 30. PubMed PMID: 25074280.


  1. Wang Y, Ajtai K, Burghardt TP. Analytical comparison of natural and pharmaceutical ventricular myosin activators. Biochemistry. 2014 Aug 19;53(32):5298-306. doi: 10.1021/bi500730t. Epub 2014 Aug 7. PubMed PMID: 25068717; PubMed Central PMCID: PMC4139156.


  1. Tarone G, Balligand JL, Bauersachs J, Clerk A, De Windt L, Heymans S, Hilfiker-Kleiner D, Hirsch E, Iaccarino G, Knöll R, Leite-Moreira AF, Lourenço AP, Mayr M, Thum T, Tocchetti CG. Targeting myocardial remodelling to develop novel therapies for heart failure: a position paper from the Working Group on Myocardial Function of the European Society of Cardiology. Eur J Heart Fail. 2014 May;16(5):494-508. doi: 10.1002/ejhf.62. Epub 2014 Mar 17. PubMed PMID: 24639064.


Products are for research use only. Not for human use.

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