Impurity reference standards
Methimazole impurity standards
This page brings together 2 Methimazole related compounds that analytical teams use to identify, quantify and control impurities in the active ingredient and the finished dosage form. The range includes 2 isotope-labelled standards.
2reference materials
2isotope labelled
Every standard comes with a certificate of analysis. Structure confirmation data, typically NMR, MS and chromatographic purity, is available on request. 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
Isotope labelled2Deuterated, 13C or 15N internal standards
Counts are based on product names. One compound can fall into more than one type.
All Methimazole reference materials
1–2 of 2 standards
Questions
Methimazole impurities, answered
What Methimazole reference materials are available?
The catalogue currently lists 2 compounds for Methimazole, including 2 isotope-labelled standards. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.
What documents come with a Methimazole 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 Methimazole 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 Methimazole standards available?
Yes. 2 stable-isotope labelled compounds are listed, suitable as internal standards for LC-MS bioanalysis and trace impurity quantitation.