Selexipag Impurity 71 CAS CATO-C4X-196171
| CAS No. | CATO-C4X-196171 |
| Molecular Formula | C24H25N3O5 |
| Molecular Weight | 435.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Selexipag Impurity 71 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 435.47 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a process- or degradation-related impurity, Selexipag Impurity 71 (CAS CATO-C4X-196171, C24H25N3O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Selexipag Impurity 71 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C24H25N3O5 |
| Molecular Weight | 435.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Selexipag Standards
- Selexipag Impurity 4 (CAS 2732400-56-3)
- Selexipag Impurity 24 (CAS 475086-96-5)
- Selexipag Impurity 42 (CAS CATO-C4X-196142)
- 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
- Pyridoxine impurity 87 (CAS CATO-C4X-187787)
- (1-(6-(1H-Pyrazol-1-yl)pyridazin-3-yl)piperidin-3-yl)(4-(furan-2-carbonyl)piperazin-1-yl)methanone (CAS 1286697-88-8)
- Carvedilol Impurity 28 (CAS CATO-C4X-157428)
- 4-Hydroxy estrone 1-N7-guanine (CAS 178971-92-1)
- Moxidectin EP Impurity L (CAS 119718-45-5)
- Moxifloxacin EP Impurity B HCl (CAS 2252446-68-5)
- Pramipexole Impurity 41 (CAS 104617-50-7)
- 1-(4-Chlorophenyl)-3-(2-(5-methoxy-1H-indol-3-yl)ethyl)urea (CAS 860786-97-6)
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