Impurity reference standards
Cyproterone impurity standards
11 characterised compounds linked to Cyproterone are catalogued here, from named pharmacopoeial impurities to synthesis intermediates and breakdown products. Highlights of the range are 8 pharmacopoeial impurities and 2 metabolites or hydroxylated analogues.
11reference materials
8pharmacopoeial
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. 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
Pharmacopoeial8EP, USP, BP or JP named impurities
Metabolites2Hydroxy, desmethyl and conjugated forms
Counts are based on product names. One compound can fall into more than one type.
All Cyproterone reference materials
1–11 of 11 standards
Cyproterone Acetate Dichloro 17-Hydroxy Impurity
- CAS
- 2271091-83-7
- Formula
- C22H28Cl2O3
- MW
- 411.4 g/mol
ZX-024104
Questions
Cyproterone impurities, answered
How many Cyproterone impurity standards does Zemixal list?
The catalogue currently lists 11 compounds for Cyproterone, including 8 pharmacopoeial impurities 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 Cyproterone 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 Cyproterone 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.