Selexipag Impurity 24 CAS 475086-96-5
| CAS No. | 475086-96-5 |
| Molecular Formula | C26H30N2O4 |
| Molecular Weight | 434.53 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies Selexipag Impurity 24 (CAS 475086-96-5), a pharmacopoeial impurity reference standard (molecular formula C26H30N2O4, MW 434.53 g/mol) used for the identification and quantification of trace impurities in APIs.
Selexipag Impurity 24 (C26H30N2O4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C26H30N2O4 |
| Molecular Weight | 434.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Related Selexipag Standards
- Selexipag Impurity 71 (CAS CATO-C4X-196171)
- Selexipag Impurity 42 (CAS CATO-C4X-196142)
- Selexipag Impurity 4 (CAS 2732400-56-3)
- Selexipag Impurity 2 D6 (CAS 1265295-56-4)
- Selexipag Impurity 5 (CAS 2287345-22-4)
- Selexipag Impurity 2 (CAS 475085-57-5)
- Selexipag Impurity 17 (CAS 475086-28-3)
- Selexipag Impurity 59 (CAS CATO-C4X-196159)
Recommended Standards
- (S,S)-Formoterol EP Impurity H (CAS 67346-67-2)
- Ensifentrine impurity 10 (CAS CATO-C4X-335310)
- (R,R)-Formoterol EP Impurity H (CAS 1337876-26-2)
- Ensifentrine Impurity 21 (CAS CATO-C4X-335321)
- Ruxolitinib Impurity 117 (CAS CATO-C4X-2058117)
- Acotiamide Impurity 11 (CAS 5722-93-0)
- Tirofiban Impurity 2 (CAS 151414-72-1)
- 5-Amino-2-(3-fluorophenyl)-2,4-dihydro-3H-pyrazol-3-one (CAS 1368951-30-7)
- 3-Dodecyl-1,1,1,3,5,5,5-heptamethyltrisiloxane (CAS 139614-44-1)
- 3-{[(5-chloro-1,2,3-thiadiazol-4-yl)methyl]sulfanyl}-4-methyl-4,5-dihydro-1h-1,2,4-triazol-5-one (CAS 1249500-54-6)
- 3-(4-Chlorophenyl)-2-methyl-3,4-dihydroquinazolin-4-one (CAS 1788-93-8)
- 2-(6-Fluoro-1-indanyl)acetic Acid (CAS 1188044-87-2)
- 4-(((Trifluoromethyl)sulfonyl)oxy)-2H-chromen-7-yl pivalate (CAS 2226904-90-9)
- Insulin Glargine (CAS 160337-95-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com