Rimegepant Impurity 41 CAS CATO-C4X-248741
| CAS No. | CATO-C4X-248741 |
| Molecular Formula | C28H28F2N6O3 |
| Molecular Weight | 534.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Rimegepant Impurity 41 (C28H28F2N6O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Rimegepant Impurity 41 (CAS CATO-C4X-248741), a pharmacopoeial impurity reference standard (molecular formula C28H28F2N6O3, MW 534.56 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C28H28F2N6O3 |
| Molecular Weight | 534.56 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 6 |
Related Rimegepant Standards
- Rimegepant (CAS 1289023-67-1)
- Rimegepant Impurity 127 (CAS CATO-C4X-2487127)
- Rimegepant Impurity 153 (CAS CATO-C4X-2487153)
- Rimegepant Impurity 39 (CAS CATO-C4X-248739)
- Rimegepant Impurity 40 (CAS CATO-C4X-248740)
- Rimegepant Impurity 42 (CAS CATO-C4X-248742)
- Rimegepant Impurity 43 (CAS CATO-C4X-248743)
- Rimegepant Impurity 44 (CAS CATO-C4X-248744)
Recommended Standards
- Rimegepant Impurity 55 (CAS CATO-C4X-248755)
- Rimegepant Impurity 67 (CAS CATO-C4X-248767)
- Benidipine Impurity 58 (CAS CATO-C4X-112058)
- Rimegepant Impurity 82 (CAS CATO-C4X-248782)
- Saxagliptin Impurity 67 (CAS CATO-C4X-104967)
- Dalilesen impurity 13 (CAS 1788946-71-3)
- Nikethamide Impurity 17 (CAS CATO-C4X-186117)
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- (2S)-2-((4-(4-Carboxy-2-oxopyrrolidin-1-yl)phenyl)amino)succinic acid (CAS 834894-48-3)
- 3-Quinolinecarbonitrile, 1,4-dihydro-6-methyl-4-oxo- (CAS 71083-62-0)
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