21-Acetyl-17,21-dihydroxy-pregna-4,8-diene-3,11,20-trione
- CAS
- 1856-26-4
- Formula
- C23H28O6
- MW
- 400.5 g/mol
ZX-038982
Impurity reference standards
Cortisone impurity standards
Zemixal lists 6 reference materials related to Cortisone, covering the drug substance itself, its process impurities and the products it forms on storage. Among them are 1 isotope-labelled standard and 2 metabolites or hydroxylated analogues.
6reference materials
1isotope labelled
2metabolites
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. They are bought for system suitability, peak identification, quantitation against limits and the impurity justification sections of regulatory submissions.
By impurity type
Isotope labelled1Deuterated, 13C or 15N internal standards
Metabolites2Hydroxy, desmethyl and conjugated forms
Counts are based on product names. One compound can fall into more than one type.
All Cortisone reference materials
1–6 of 6 standards
Questions
Cortisone impurities, answered
How many Cortisone impurity standards does Zemixal list?
The catalogue currently lists 6 compounds for Cortisone, including 1 isotope-labelled standard and 2 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 Cortisone 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 Cortisone 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 Cortisone standards available?
Yes. 1 stable-isotope labelled compound is listed, suitable as internal standards for LC-MS bioanalysis and trace impurity quantitation.