(2`-(1H-Tetrazol-5-yl)-[1,1`-biphenyl]-4-yl)methanamine
- CAS
- 147225-68-1
- Formula
- C14H13N5
- MW
- 251.29 g/mol
ZX-039382
Impurity reference standards
Losartan impurity standards
36 characterised compounds linked to Losartan are catalogued here, from named pharmacopoeial impurities to synthesis intermediates and breakdown products. Highlights of the range are 13 pharmacopoeial impurities.
36reference materials
13pharmacopoeial
Every standard comes with a certificate of analysis. Structure confirmation data, typically NMR, MS and chromatographic purity, is available on request. Typical uses are method development and validation, relative response factor work, forced degradation studies and the impurity sections of ANDA, DMF or CEP filings.
By impurity type
Pharmacopoeial13EP, USP, BP or JP named impurities
Counts are based on product names. One compound can fall into more than one type.
All Losartan reference materials
1–36 of 36 standards
2'-(2H-Tetrazol-5-yl)-[1,1'-biphenyl]-4-carboxaldehyde
- CAS
- 151052-40-3
- Formula
- C14H10N4O
- MW
- 250.25 g/mol
ZX-030368
5-(4'-(Bromomethyl)-[1,1'-biphenyl]-2-YL)-2H-tetrazole
- CAS
- 138402-33-2
- Formula
- C14H11BrN4
- MW
- 315.17 g/mol
ZX-029976
5-(4'-(Dibromomethyl)-[1,1'-biphenyl]-2-yl)-1-trityl-1H-tetrazole
- CAS
- 358685-13-9
- Formula
- C33H24Br2N4
- MW
- 636.4 g/mol
ZX-030924
Des[2-(1H-tetrazol-5-yl)] 2-Cyanolosartan Carboxaldehyde
- CAS
- 124750-67-0
- Formula
- C22H20ClN3O
- MW
- 377.9 g/mol
ZX-030367
Questions
Losartan impurities, answered
How many Losartan impurity standards does Zemixal list?
The catalogue currently lists 36 compounds for Losartan, including 13 pharmacopoeial impurities. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.
What documents come with a Losartan impurity standard?
A certificate of analysis travels with every lot. On request we share the characterisation set, usually 1H-NMR, mass spectrum, HPLC purity and IR, and for some materials TGA or water content. Ask for the data before ordering if your QA team needs to review it.
Can Zemixal make a Losartan impurity that is not listed?
Often yes. Send the structure, name or CAS number with the quantity you need and our sourcing team checks custom synthesis options, usually from 10 mg up to gram scale, with a quoted lead time.