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1370462

USP

Losartan potassium

United States Pharmacopeia (USP) Reference Standard

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:
Molecular Weight:
461.00
Beilstein/REAXYS Number:
5845770
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

grade

pharmaceutical primary standard

API family

losartan

manufacturer/tradename

USP

application(s)

pharmaceutical (small molecule)

format

neat

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 is a new drug used for hypertension. It is nonpeptide angiotensin II (AII) receptor antagonist.
Losartan potassium is nonpeptide angiotensin II (AII) receptor antagonist and is orally active. It belongs to a new class of drugs introduced for clinical trials to treat hypertension.

Application

Losartan potassium USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:
  • Losartan Potassium and Hydrochlorothiazide Tablets
  • Losartan Potassium Tablets

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.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Quantification of losartan and its metabolite in rat urine
Prolina, OG, et al.
Bulletin of Moscow University, 53.3, 194-197 (2012)
D M Dorfman et al.
The Journal of biological chemistry, 267(2), 1279-1285 (1992-01-15)
Previously, we showed that the promoter of the gene encoding preproendothelin-1 (PPET-1) contains a GATA motif that is essential for activity and interacts with a nuclear factor similar in size and binding specificity to the erythroid transcription factor GATA-1. To
Tetsuhiro Kakimoto et al.
The Journal of endocrinology, 222(1), 43-51 (2014-05-02)
Diabetic nephropathy is a major complication in diabetes and a leading cause of end-stage renal failure. Glomerular podocytes are functionally and structurally injured early in diabetic nephropathy. A non-obese type 2 diabetes model, the spontaneously diabetic Torii (SDT) rat, is
K L Goa et al.
Drugs, 51(5), 820-845 (1996-05-01)
Losartan potassium is an orally active, nonpeptide angiotensin II (AII) receptor antagonist. It is the first of a new class of drugs to be introduced for clinical use in hypertension. This novel agent binds competitively and selectively to the AII
L M Burrell
Drug safety, 16(1), 56-65 (1997-01-01)
Losartan potassium is the first of a new class of orally active antihypertensive drugs which antagonise the action of angiotensin (AT) II at the AT1 receptor subtype. Losartan potassium is converted by the liver to the active metabolite E-3174, which

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