Flunarizine Impurity 14 CAS CATO-C4X-135714
| CAS No. | CATO-C4X-135714 |
| Molecular Formula | C26H26F2N2O2 |
| Molecular Weight | 436.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Flunarizine Impurity 14 (CAS CATO-C4X-135714, C26H26F2N2O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C26H26F2N2O2, Flunarizine Impurity 14 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 436.49 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C26H26F2N2O2 |
| Molecular Weight | 436.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Flunarizine Standards
- Flunarizine Impurity 15 (CAS CATO-C4X-135715)
- Flunarizine impurity 53 (CAS CATO-C4X-135753)
- Flunarizine Impurity 7 (CAS 87166-81-2)
- Flunarizine Impurity N1 (CAS 123375-94-0)
- Flunarizine impurity 34 (CAS CATO-C4X-135734)
- Flunarizine Impurity 58 (CAS CATO-C4X-135758)
- Flunarizine impurity 39 (CAS 19422-37-8)
- Flunarizine EP Impurity C (CAS 90830-31-2)
Recommended Standards
- Propargyl-PEG8-acid (CAS 2055014-94-1)
- N-(Benzo[d]thiazol-2-yl)-2-((3-(4-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetamide (CAS 721964-46-1)
- Flumetasone Impurity 9 (CAS 2541-37-9)
- Calcitriol Impurity 15 (CAS 214351-86-7)
- Fulvestrant Impurity 15 (CAS 38649-18-2)
- Minoxidil Impurity 31 (CAS 35139-68-5)
- Glycerol Impurity 38 (CAS CATO-C4X-217138)
- 2-Methyl-N-((tetrahydro-2h-pyran-4-yl)methyl)propan-2-amine (CAS 1250224-81-7)
- 2-Fluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazine (CAS 2223031-60-3)
- 2-[({[2,4-dichloro-5-(propan-2-yloxy)phenyl]carbamoyl}methyl)sulfanyl]-N-methylacetamide (CAS 341964-50-9)
- tert-Butyl ((4-bromothiazol-2-yl)methyl)carbamate (CAS 697299-87-9)
- (5-Fluoro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)methanamine (CAS 2096329-84-7)
- 4-chloro-1,3-dimethyl-1h-pyraZole-5-carbohydrazide (CAS 676348-43-9)
- Osteogenic Growth Peptide (CAS 132996-61-3)
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