Impurity reference standards
Metronidazole impurity standards
This page brings together 17 Metronidazole related compounds that analytical teams use to identify, quantify and control impurities in the active ingredient and the finished dosage form. The range includes 5 pharmacopoeial impurities, 4 isotope-labelled standards and 4 metabolites or hydroxylated analogues.
17reference materials
5pharmacopoeial
4isotope labelled
4metabolites
Each lot ships with a certificate of analysis, and characterisation data such as 1H-NMR, mass spectrum and HPLC purity can be shared before you order. Laboratories use them to validate related-substance methods, set specification limits under ICH Q3A and Q3B, and identify unknown peaks in stability samples.
By impurity type
Pharmacopoeial5EP, USP, BP or JP named impurities
Isotope labelled4Deuterated, 13C or 15N internal standards
Metabolites4Hydroxy, desmethyl and conjugated forms
Counts are based on product names. One compound can fall into more than one type.
All Metronidazole reference materials
1–17 of 17 standards
2-(2-Methyl-4-nitro-1H-imidazol-1-yl)ethyl Benzoate
- CAS
- 87009-72-1
- Formula
- C13H13N3O4
- MW
- 275.26 g/mol
ZX-030572
N-(2-Hydroxyethyl)-5-methyl-1,2,4-oxadiazole-3-carboxamide
- CAS
- 110578-73-9
- Formula
- C6H9N3O3
- MW
- 171.15 g/mol
ZX-025599
Questions
Metronidazole impurities, answered
What Metronidazole reference materials are available?
The catalogue currently lists 17 compounds for Metronidazole, including 5 pharmacopoeial impurities, 4 isotope-labelled standards and 4 metabolites or hydroxylated analogues. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.
What documents come with a Metronidazole 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 Metronidazole 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 Metronidazole standards available?
Yes. 4 stable-isotope labelled compounds are listed, suitable as internal standards for LC-MS bioanalysis and trace impurity quantitation.