Impurity reference standards
Selexipag impurity standards
Zemixal lists 12 reference materials related to Selexipag, covering the drug substance itself, its process impurities and the products it forms on storage. Among them are 2 metabolites or hydroxylated analogues and 1 degradation product.
12reference materials
2metabolites
1degradants
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
Metabolites2Hydroxy, desmethyl and conjugated forms
Degradants1N-oxides, dimers, lactones and breakdown products
Counts are based on product names. One compound can fall into more than one type.
All Selexipag reference materials
1–12 of 12 standards
4-((5,6-Diphenylpyrazin-2-yl)(isopropyl)amino)butan-1-ol
- CAS
- 475086-75-0
- Formula
- C23H27N3O
- MW
- 361.5 g/mol
ZX-020396
tert-Butyl 2-((5,6-diphenylpyrazin-2-yl)oxy)acetate
- CAS
- 162928-03-2
- Formula
- C22H22N2O3
- MW
- 362.4 g/mol
ZX-032435
Questions
Selexipag impurities, answered
How many Selexipag impurity standards does Zemixal list?
The catalogue currently lists 12 compounds for Selexipag, including 2 metabolites or hydroxylated analogues and 1 degradation product. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.
What documents come with a Selexipag 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 Selexipag 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.