(2Z)-2-Cyano-N-(4-cyanophenyl)-3-hydroxy-2-Butenamide
- CAS
- 202057-74-7
- Formula
- C12H9N3O2
- MW
- 227.22 g/mol
ZX-025328
Impurity reference standards
Teriflunomide impurity standards
For Teriflunomide, the Zemixal catalogue holds 19 impurity and reference standards that support release testing, stability programmes and regulatory dossiers. Counted by type, there are 1 isotope-labelled standard and 5 metabolites or hydroxylated analogues.
19reference materials
1isotope labelled
5metabolites
Every standard comes with a certificate of analysis. Structure confirmation data, typically NMR, MS and chromatographic purity, is available on request. 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
Metabolites5Hydroxy, desmethyl and conjugated forms
Counts are based on product names. One compound can fall into more than one type.
All Teriflunomide reference materials
1–19 of 19 standards
2-Cyano-3-hydroxy-N-(2-(trifluoromethyl)phenyl)but-2-enamide
- CAS
- 220512-86-7
- Formula
- C12H9F3N2O2
- MW
- 270.21 g/mol
ZX-030193
2-Cyano-3-hydroxy-N-(4-methylphenyl)-2-butenamide
- CAS
- 1385789-70-7
- Formula
- C12H12N2O2
- MW
- 216.24 g/mol
ZX-021972
2-Oxo-2-[[4-(trifluoromethyl)phenyl]amino]acetic Acid
- CAS
- 69066-42-8
- Formula
- C9H6F3NO3
- MW
- 233.14 g/mol
ZX-025323
4-Amino-N-[4-(trifluoromethyl)phenyl]benzamide
- CAS
- 1011244-72-6
- Formula
- C14H11F3N2O
- MW
- 280.24 g/mol
ZX-030190
Questions
Teriflunomide impurities, answered
What Teriflunomide reference materials are available?
The catalogue currently lists 19 compounds for Teriflunomide, including 1 isotope-labelled standard and 5 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 Teriflunomide 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 Teriflunomide 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 Teriflunomide standards available?
Yes. 1 stable-isotope labelled compound is listed, suitable as internal standards for LC-MS bioanalysis and trace impurity quantitation.