Impurity reference standards
Clotrimazole impurity standards
For Clotrimazole, the Zemixal catalogue holds 14 impurity and reference standards that support release testing, stability programmes and regulatory dossiers. Counted by type, there are 4 pharmacopoeial impurities and 1 isotope-labelled standard.
14reference materials
4pharmacopoeial
1isotope labelled
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. They are bought for system suitability, peak identification, quantitation against limits and the impurity justification sections of regulatory submissions.
By impurity type
Pharmacopoeial4EP, USP, BP or JP named impurities
Isotope labelled1Deuterated, 13C or 15N internal standards
Counts are based on product names. One compound can fall into more than one type.
All Clotrimazole reference materials
1–14 of 14 standards
1-((2-Chlorophenyl)diphenylmethyl)-2-methyl-1H-imidazole
- CAS
- 98751-53-2
- Formula
- C23H19ClN2
- MW
- 358.9 g/mol
ZX-021276
Questions
Clotrimazole impurities, answered
What Clotrimazole reference materials are available?
The catalogue currently lists 14 compounds for Clotrimazole, including 4 pharmacopoeial impurities and 1 isotope-labelled standard. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.
What documents come with a Clotrimazole 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 Clotrimazole 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 Clotrimazole standards available?
Yes. 1 stable-isotope labelled compound is listed, suitable as internal standards for LC-MS bioanalysis and trace impurity quantitation.