Impurity reference standards
Doripenem impurity standards
For Doripenem, the Zemixal catalogue holds 2 impurity and reference standards that support release testing, stability programmes and regulatory dossiers. Most entries are process-related impurities, synthesis intermediates and isomers.
2reference materials
Batches are supplied with a certificate of analysis, and the supporting spectra can be sent ahead of a purchase order so your QA team can review them. Laboratories use them to validate related-substance methods, set specification limits under ICH Q3A and Q3B, and identify unknown peaks in stability samples.
All Doripenem reference materials
1–2 of 2 standards
Questions
Doripenem impurities, answered
What Doripenem reference materials are available?
The catalogue currently lists 2 compounds for Doripenem. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.
What documents come with a Doripenem 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 Doripenem 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.