Rimegepant Impurity 9 CAS 1190363-46-2
| CAS No. | 1190363-46-2 |
| Molecular Formula | C25H33F2NO2Si |
| Molecular Weight | 445.62 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Rimegepant Impurity 9 (CAS 1190363-46-2) is a certified pharmaceutical impurity reference standard with the molecular formula C25H33F2NO2Si and a molecular weight of 445.62 g/mol.
Structurally, Rimegepant Impurity 9 (C25H33F2NO2Si) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 445.62 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C25H33F2NO2Si |
| Molecular Weight | 445.62 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Rimegepant Standards
- Rimegepant Impurity 14 (CAS 1397526-07-6)
- Rimegepant Impurity 143 (CAS CATO-C4X-2487143)
- Rimegepant Impurity 15 (CAS CATO-C4X-248715)
- Rimegepant Impurity 16 (CAS 1397526-11-2)
- Rimegepant Impurity 80 (CAS CATO-C4X-248780)
- Rimegepant Impurity 111 (CAS CATO-C4X-2487111)
- Rimegepant Impurity 15 (CAS 1289024-42-5)
- Rimegepant Impurity 116 (CAS CATO-C4X-2487116)
Recommended Standards
- N-((2R,3R,4R,5S,6R)-2-(hexadecyloxy)-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)acetamide (CAS 115414-49-8)
- 1-O-Benzoyl C2 Ceramide (CAS 78715-90-9)
- [S(R)]-N-[(1R)-1-[2-(Di-tert-butylphosphanyl)phenyl]phenylmethyl]-N,2-dimethyl-2-propanesulfinamide (CAS 2757083-12-6)
- [S(R)]-N-[(1S)-1-[2-(Di-tert-butylphosphanyl)phenyl]phenylmethyl]-N,2-dimethyl-2-propanesulfinamide (CAS 2253984-99-3)
- Galanthamine Impurity 12 (CAS 7318-55-0)
- Levothyroxine Impurity 57 (CAS CATO-C4X-167857)
- Oseltamivir Impurity 285 (CAS CATO-C4X-1720285)
- 2-(2-Acetylbenzo[d]oxazol-5-yl)acetonitrile (CAS 1803836-98-7)
- Methyl 3-(cyanomethyl)-1h-indole-4-carboxylate (CAS 169546-86-5)
- 4-Cyclopropoxy-N,N,2-trimethylaniline (CAS 1243376-62-6)
- Methyl 2-[3-(difluoromethyl)-1H-pyrazol-1-yl]acetate (CAS 1823451-27-9)
- Sodium 1-hydroxy-2,5-dioxopyrrolidine-3-sulfonate hydrate (CAS 304671-62-3)
- (S,E)-2-Methyl-N-propylidenepropane-2-sulfinamide (CAS 623169-00-6)
- Des-Gln19-Tirzepatide (CAS CATO-CPTD788954)
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