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Supelco

Losartan potassium

Synonym(s):

2-Butyl-4-chloro-1-{[2′-(1H-tetrazol-5-yl)(1,1′-biphenyl)-4-yl]methyl}-1H-imidazole-5-methanol monopotassium salt, 2-butyl-4-chloro-1-[[2′-(2H-tetrazol-5-yl)[1,1′-biphenyl]-4-yl]methyl]- 1H-Imidazole-5-methanol potassium salt, DuP 753, MK 954, Potassium 5-(4′-((2-butyl-4-chloro-5-(hydroxymethyl)-1H-imidazol-1-yl)methyl)-[1,1′-biphenyl]-2-yl)tetrazol-1-ide

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About This Item

Empirical Formula (Hill Notation):
C22H22ClKN6O
CAS Number:
124750-99-8
Molecular Weight:
461.00
Beilstein/REAXYS Number:
5845770
MDL number:
MFCD02092704
UNSPSC Code:
41116107
PubChem Substance ID:
329759382
NACRES:
NA.24

form

powder or crystals

Quality Level

200

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

impurities

≤0.5% water

application(s)

forensics and toxicology
pharmaceutical (small molecule)
veterinary

SMILES string

CCCCc1nc(Cl)c(CO)n1Cc2ccc(cc2)-c3ccccc3-c4nnnn4[K]

InChI

1S/C22H22ClN6O.K/c1-2-3-8-20-24-21(23)19(14-30)29(20)13-15-9-11-16(12-10-15)17-6-4-5-7-18(17)22-25-27-28-26-22;/h4-7,9-12,30H,2-3,8,13-14H2,1H3;/q-1;+1

InChI key

OXCMYAYHXIHQOA-UHFFFAOYSA-N

Gene Information

human ... AGTR1(185)

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General description

Losartan potassium has long lasting effects, and its efficacy is generally increased, when combined with the diuretic co-active hydrochlorothiazide.
Losartan potassium is an antihypertensive drug that is found to be an angiotensin II receptor type 1 blocker. It finds applications in reducing mechanical stress thereby having a control over the condition of cardiac hypertrophy.

Application

Losartan potassium may be used as an analytical reference standard for the quantification of the analyte in the following:
  • Pharmaceutical formulations using reversed-phase high-performance liquid chromatography and UV-spectrophotometric techniques.
  • Rat plasma using liquid chromatography–tandem mass spectrometry (LC–MS/MS) technique.

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Biochem/physiol Actions

Losartan potassium is an orally available, potent, and selective competitive angiotensin II receptor type 1 (AT1) antagonist. Losartan potassium is used for treatment of hypertension.

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Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number

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Sigma-Aldrich

T8949

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Enalapril maleate salt powder, ≥98% (TLC)

Sigma-Aldrich

E6888

Enalapril maleate salt

USP

USP

1370484

Losartan Related Compound B

S-(+)-PD 123177 trifluoroacetate salt hydrate ≥98% (HPLC), solid

Sigma-Aldrich

P5749

S-(+)-PD 123177 trifluoroacetate salt hydrate

Angiotensin II human ≥93% (HPLC), powder

Sigma-Aldrich

A9525

Angiotensin II human

Eprosartan mesylate ≥98% (HPLC)

Sigma-Aldrich

E2535

Eprosartan mesylate

Losartan Related Compound A United States Pharmacopeia (USP) Reference Standard

USP

1370473

Losartan Related Compound A

vibrant-m

C2174000

Cilazapril

Mechanical stress-evoked but angiotensin II-independent activation of angiotensin II type 1 receptor induces cardiac hypertrophy through calcineurin pathway
Zhou N, et al
Biochemical and Biophysical Research Communications, 397, 263-269 (2010)
Simultaneous determination of losartan and hydrochlorothiazide in tablets by high-performance liquid chromatography
Carlucci G, et al.
Journal of Pharmaceutical and Biomedical Analysis, 23(1), 185-189 (2000)
Michael D Kim et al.
ERJ open research, 7(1) (2021-02-04)
The aim was to determine whether losartan reduces cigarette smoke (CS)-induced airway inflammation and mucus hypersecretion in an in vitro model and a small clinical trial. Primary human bronchial epithelial cells (HBECs) were differentiated at the air-liquid interface (ALI) and
Satoshi Terada et al.
The Journal of bone and joint surgery. American volume, 95(11), 980-988 (2013-06-20)
Muscle contusions are a common type of muscle injury and are frequently encountered in athletes and military personnel. Although these injuries are capable of healing in most instances, incomplete functional recovery often occurs because of the development of fibrosis in
Christiane Pees et al.
The American journal of cardiology, 112(9), 1477-1483 (2013-07-23)
Since 2008, when angiotensin II type I receptor blockade with losartan was introduced in the prevention of cardiovascular manifestation of Marfan syndrome (MFS), a specific treatment to address the cardiovascular lesions became available. The present study aimed to compare the
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