Selexipag Impurity 22 CAS 2068134-98-3
| CAS No. | 2068134-98-3 |
| Molecular Formula | C19H19N3 |
| Molecular Weight | 289.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Selexipag Impurity 22 (C19H19N3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 289.37 g/mol, it falls into the medium-molecular-weight range. 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 22 (CAS 2068134-98-3, C19H19N3) 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 22 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 | C19H19N3 |
| Molecular Weight | 289.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 3 |
Related Selexipag Standards
- Selexipag Impurity 58 (CAS CATO-C4X-196158)
- Selexipag Impurity 52 (CAS CATO-C4X-196152)
- Selexipag Impurity 9 (CAS 57038-62-7)
- Selexipag Impurity 8 (CAS CATO-C4X-19618)
- Selexipag Impurity 41 (CAS CATO-C4X-196141)
- Selexipag Impurity 13 (CAS 41270-66-0)
- Selexipag Impurity 18 (CAS CATO-C4X-196118)
- Selexipag Impurity 15 (CAS CATO-C4X-196115)
Recommended Standards
- Ropinirole EP Impurity H (CAS CATO-C4X-17458)
- Vibegron Impurity 11 (CAS CATO-C4X-237611)
- N-Nitroso Ropinirole (CAS CATO-C4X-174518)
- Vibegron Impurity 14 (CAS CATO-C4X-237614)
- Moxifloxacin Impurity 58 (CAS CATO-C4X-107458)
- Opicapone impurity 37 (CAS CATO-C4X-240437)
- Perindopril Impurity 99 (CAS 145513-63-9)
- Fmoc-(R)-3-amino-4-(4-biphenyl)butanoic acid (CAS 332062-10-9)
- (3AR,5S,6S,6aR)-6-(benzyloxy)-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxole-5-carbaldehyde (CAS 23558-05-6)
- 2-Methyl-4-(thiophen-3-yl)butan-1-amine (CAS 1340089-37-3)
- N-(3-nitrobenzyl)cyclopentanamine (CAS 355382-02-4)
- Sodelglitazar (CAS 447406-78-2)
- N-((3-phenylisoxazol-5-yl)methyl)benzenesulfonamide (CAS 339016-87-4)
- Semaglutide Impurity 137 (x TFA Salt) (CAS CATO-C4X-2226137)
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