Impurity reference standards
Benzophenone impurity standards
For Benzophenone, the Zemixal catalogue holds 5 impurity and reference standards that support release testing, stability programmes and regulatory dossiers. Counted by type, there are 3 isotope-labelled standards and 1 metabolite or hydroxylated analogue.
5reference materials
3isotope labelled
1metabolites
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
Isotope labelled3Deuterated, 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 Benzophenone reference materials
1–5 of 5 standards
Questions
Benzophenone impurities, answered
What Benzophenone reference materials are available?
The catalogue currently lists 5 compounds for Benzophenone, including 3 isotope-labelled standards 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 Benzophenone 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 Benzophenone 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 Benzophenone standards available?
Yes. 3 stable-isotope labelled compounds are listed, suitable as internal standards for LC-MS bioanalysis and trace impurity quantitation.