(11Beta)-9-Fluoro-11,21-dihydroxy-16-methyl-pregna-1,4,16-triene-3,20-dione
- CAS
- 59860-99-0
- Formula
- C22H27FO4
- MW
- 374.4 g/mol
ZX-028673
Impurity reference standards
Clobetasol impurity standards
11 characterised compounds linked to Clobetasol are catalogued here, from named pharmacopoeial impurities to synthesis intermediates and breakdown products. Highlights of the range are 7 pharmacopoeial impurities and 2 metabolites or hydroxylated analogues.
11reference materials
7pharmacopoeial
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. Typical uses are method development and validation, relative response factor work, forced degradation studies and the impurity sections of ANDA, DMF or CEP filings.
By impurity type
Pharmacopoeial7EP, 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 Clobetasol reference materials
1–11 of 11 standards
(6α,9β,11β,16α)-9,11-Epoxy-6-fluoro-21-hydroxy-16-methyl-pregna-1,4-diene-3,20-dione
- CAS
- 61618-89-1
- Formula
- C22H27FO4
- MW
- 374.4 g/mol
ZX-028674
Questions
Clobetasol impurities, answered
How many Clobetasol impurity standards does Zemixal list?
The catalogue currently lists 11 compounds for Clobetasol, including 7 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 Clobetasol 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 Clobetasol 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.