Rimegepant Impurity 99 CAS CATO-C4X-248799
| CAS No. | CATO-C4X-248799 |
| Molecular Formula | C25H35F2NOSi |
| Molecular Weight | 431.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Rimegepant Impurity 99 (CAS CATO-C4X-248799) is a certified pharmaceutical impurity reference standard with the molecular formula C25H35F2NOSi and a molecular weight of 431.63 g/mol.
The molecular framework of Rimegepant Impurity 99 (C25H35F2NOSi) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
As a certified reference material (CRM), Rimegepant Impurity 99 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 | C25H35F2NOSi |
| Molecular Weight | 431.63 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Rimegepant Standards
- Rimegepant Impurity 20 (CAS CATO-C4X-248720)
- Rimegepant Impurity 147 (CAS CATO-C4X-2487147)
- Rimegepant Impurity 130 (CAS CATO-C4X-2487130)
- Rimegepant Impurity 71 (CAS CATO-C4X-248771)
- Rimegepant Impurity 88 (CAS CATO-C4X-248788)
- Rimegepant Impurity 89 (CAS CATO-C4X-248789)
- Rimegepant Impurity 90 (CAS CATO-C4X-248790)
- Rimegepant Impurity 91 (CAS CATO-C4X-248791)
Recommended Standards
- NU 7441 (CAS 503468-95-9)
- (S)-N-(1-Hydroxy-3-(4-hydroxyphenyl)propan-2-yl)oleamide (CAS 616884-62-9)
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- OMDM-2 (CAS 616884-63-0)
- N-Nitroso Leucine Impurity 1 (CAS 78814-91-2)
- Alogliptin Impurity 2 (CAS CATO-C4X-10992)
- Parecoxib Impurity 41 (CAS 198470-82-5)
- Iopamidol Impurity 41 (CAS CATO-C4X-145041)
- 4-Methyl-2-phenylisoquinolin-1(2H)-one (CAS 89736-86-7)
- 4-(4-(Trifluoromethoxy)phenyl)picolinic acid (CAS 1261656-56-7)
- 3-(2-Methoxypropan-2-yl)-1,2,4-thiadiazol-5-amine (CAS 1528136-42-6)
- 7-Phenyl-2-thioxo-1,5-dihydropyrrolo[3,2-d]pyrimidin-4-one (CAS 1019137-74-6)
- 5-Isopropyl-3-(methoxycarbonyl)-2H-cyclohepta[b]furan-2-one (CAS 99909-62-3)
- Semaglutide-d5 (CAS CATO-C4X-2226153)
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