Rimegepant Impurity 78 CAS CATO-C4X-248778
| CAS No. | CATO-C4X-248778 |
| Molecular Formula | C19H31NO2Si |
| Molecular Weight | 333.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Rimegepant Impurity 78 (CAS CATO-C4X-248778), a pharmacopoeial impurity reference standard (molecular formula C19H31NO2Si, MW 333.54 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C19H31NO2Si, Rimegepant Impurity 78 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 333.54 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), Rimegepant Impurity 78 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 | C19H31NO2Si |
| Molecular Weight | 333.54 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Rimegepant Standards
- Rimegepant Impurity 119 (CAS CATO-C4X-2487119)
- Rimegepant Impurity 133 (CAS CATO-C4X-2487133)
- Rimegepant Impurity 73 (CAS 1289024-11-8)
- Rimegepant Impurity 149 (CAS CATO-C4X-2487149)
- Rimegepant Impurity 120 (CAS 2088962-33-6)
- Rimegepant Impurity 129 (CAS CATO-C4X-2487129)
- Rimegepant Impurity 23 (CAS CATO-C4X-248723)
- Rimegepant Impurity 112 (CAS CATO-C4X-2487112)
Recommended Standards
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- Semaglutide impurity 27 (CAS CATO-C4X-222627)
- Ketoprofen EP Impurity H (CAS 5689-33-8)
- Semaglutide Impurity 186 (CAS CATO-C4X-2226186)
- tert-butyl N-[5-(propan-2-yl)-1,3-thiazol-4-yl]carbamate (CAS 1803608-32-3)
- tert-Butyl n-dodecyl ether (CAS 61548-83-2)
- 1-Chloro-3-(1-chloropropyl)benzene (CAS 1039846-29-1)
- 3,5-Dimethyl-4-(phenoxymethyl)isoxazole (CAS 303985-55-9)
- 1-(3-Amino-4,5,6-trimethylthieno[2,3-b]pyridin-2-yl)ethan-1-one (CAS 915920-34-2)
- 1-Chloropinacolone (CAS 13547-70-1)
- Allo-D-Ile17-Tirzepatide (CAS CATO-CPTD788962)
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