Atogepant Impurity 22 CAS 1318253-26-7
| CAS No. | 1318253-26-7 |
| Molecular Formula | C19H22BrN3O2Si |
| Molecular Weight | 432.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Atogepant 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.
Atogepant Impurity 22 (CAS 1318253-26-7) is a certified pharmaceutical impurity reference standard with the molecular formula C19H22BrN3O2Si and a molecular weight of 432.39 g/mol.
Based on its molecular formula C19H22BrN3O2Si, Atogepant Impurity 22 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 432.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C19H22BrN3O2Si |
| Molecular Weight | 432.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Atogepant Standards
- Atogepant Impurity 18 (CAS CATO-C4X-328518)
- Atogepant Impurity 17 (CAS CATO-C4X-328517)
- Atogepant Impurity 21 (CAS 1375542-65-6)
- Atogepant Impurity 33 (CAS 1375471-12-7)
- Atogepant Impurity 52 (CAS CATO-C4X-328552)
- Atogepant Impurity 53 (CAS 1456803-44-3)
- Atogepant Impurity 54 (CAS CATO-C4X-328554)
- Atogepant Impurity 55 (CAS CATO-C4X-328555)
Recommended Standards
- Azilsartan Impurity 118 (CAS CATO-C4X-1096118)
- Torin 2 (CAS 1223001-51-1)
- tert-butyl (2R,3S)-3-(benzyloxy)-2-(3-bromo-2-oxopropyl)piperidine-1-carboxylate (CAS 290315-11-6)
- 4-Phenyl-3-{1-[2-(trifluoromethoxy)benzoyl]piperidin-4-yl}-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775458-57-5)
- Oxazepam EP impurity A (CAS 19554-95-1)
- Carbazochrome Impurity 36 (CAS CATO-C4X-229136)
- Roxithromycin impurity 27 (CAS CATO-C4X-130327)
- 6-(Tetrahydrofuran-2-yl)nicotinic acid (CAS 1823548-15-7)
- Cefpodoxime Proxetil Impurity 12 (CAS CATO-C4X-157912)
- 4-(Naphthalen-2-yl)dihydrofuran-2(3H)-one (CAS 80707-08-0)
- (1S,2S)-trans-1,2-Cyclohexanediol 57794-08-8 (CAS 57794-08-8)
- 4-Bromo-5-fluoro-2-nitrobenzamide (CAS 1527490-62-5)
- Fondaparinux Sodium Impurity 7 (CAS CATO-C4X-20527)
- Insulin Degludec Impurity 11 (CAS CATO-C4X-215711)
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