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Losartan (potassium salt)
Activators & Inhibitors
Chemical Modulators

Losartan (potassium salt) #59489

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Losartan (potassium salt): Image 1
Chemical structure of Losartan (potassium salt).

Product Usage Information

Losartan (potassium salt) is supplied as a lyophilized powder. For a 10 mM stock, reconstitute 5 mg of powder in 1.08 ml of DMSO. Working concentrations and length of treatment can vary depending on the desired effect.


Store lyophilized at 4ºC, desiccated. In lyophilized form, the chemical is stable for 24 months. Once in solution, store at -20ºC and use within 2 months to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.

Product Description

Molecular Weight 461 g/mol
Purity >99%
Molecular Formula C22H22ClN6O • K
CAS 124750-99-8
Solubility Soluble in DMSO at 45 mg/ml or water at 45 mg/ml.


Losartan (potassium salt) is a known angiotensin II receptor antagonist by selectively and competitively blocking the binding of the angiotensin II hormone (1). In clinical settings, it is useful as an antihypertensive agent and also displays neuroprotective effects against chronic fatigue stress (2,3). Losartan (potassium salt) inhibits collagen I synthesis and induces sirtuin 1 (SirT1) expression and activity (4,5).
  1. Chiu, A.T. et al. (1990) J Pharmacol Exp Ther 252, 711-8.
  2. McIntyre, M. et al. (1997) Pharmacol Ther 74, 181-94.
  3. Kumar, A. et al. (2015) Inflammopharmacology 23, 291-305.
  4. Diop-Frimpong, B. et al. (2011) Proc Natl Acad Sci U S A 108, 2909-14.
  5. Pantazi, E. et al. (2015) World J Gastroenterol 21, 8021-31.

Limited Uses

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Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

For Research Use Only. Not For Use In Diagnostic Procedures.
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To Purchase # 59489
Cat. # Size Qty. Price
50 mg
$ 63