1-(2-((5-Bromoquinoxalin-6-yl)amino)-4,5-dihydro-1H-imidazol-1-yl)ethan-1-one
- CAS
- 1158184-23-6
- Formula
- C13H12BrN5O
- MW
- 334.17 g/mol
ZX-028331
Impurity reference standards
Brimonidine impurity standards
Zemixal lists 29 reference materials related to Brimonidine, covering the drug substance itself, its process impurities and the products it forms on storage. Among them are 8 pharmacopoeial impurities, 1 isotope-labelled standard and 1 metabolite or hydroxylated analogue.
29reference materials
8pharmacopoeial
1isotope labelled
1metabolites
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
Pharmacopoeial8EP, USP, BP or JP named impurities
Isotope labelled1Deuterated, 13C or 15N internal standards
Metabolites1Hydroxy, desmethyl and conjugated forms
Counts are based on product names. One compound can fall into more than one type.
All Brimonidine reference materials
1–29 of 29 standards
5-Chloro-N-(4,5 dihydro-1H imidazol-2-yl)quinoxalin-6-amine
- CAS
- 91147-46-5
- Formula
- C11H10ClN5
- MW
- 247.68 g/mol
ZX-020045
8-(5-Bromo-6-quinoxalinyl)-2,3,5,6,7,8-hexahydro-5-oxoimidazo[1,2-a]pyrimidine-7-carboxylic Acid
- CAS
- 934548-66-0
- Formula
- C15H12BrN5O3
- MW
- 390.19 g/mol
ZX-020919
Hydroxy Brimonidine Trifluoroacetic Acid Salt
- CAS
- 1391054-10-6
- Formula
- C13H13BrF3N5O3
- MW
- 424.17 g/mol
ZX-020916
N-(2-Aminoethyl)-N'-(5-bromo-6-quinoxalinyl)thiourea
- CAS
- 134892-47-0
- Formula
- C11H12BrN5S
- MW
- 326.22 g/mol
ZX-020918
N-(4,5-Dihydro-1H-imidazol-2-yl)-5-methyl-6-quinolinamine
- CAS
- 1217439-06-9
- Formula
- C13H14N4
- MW
- 226.28 g/mol
ZX-020920
O-Isopropyl (5-bromoquinoxalin-6-yl)carbamothioate
- CAS
- 2742962-04-3
- Formula
- C12H12BrN3OS
- MW
- 326.21 g/mol
ZX-028332
Questions
Brimonidine impurities, answered
How many Brimonidine impurity standards does Zemixal list?
The catalogue currently lists 29 compounds for Brimonidine, including 8 pharmacopoeial impurities, 1 isotope-labelled standard and 1 metabolite or hydroxylated analogue. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.
What documents come with a Brimonidine 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 Brimonidine 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.
Are isotope-labelled Brimonidine standards available?
Yes. 1 stable-isotope labelled compound is listed, suitable as internal standards for LC-MS bioanalysis and trace impurity quantitation.