Flunarizine Impurity 28 CAS CATO-C4X-135728
| CAS No. | CATO-C4X-135728 |
| Molecular Formula | C13H18N2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 238.76 g/mol gives Flunarizine Impurity 28 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Flunarizine Impurity 28 (CAS CATO-C4X-135728, C13H18N2HCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C13H18N2HCl, Flunarizine Impurity 28 contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 238.76 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C13H18N2 2*HCl |
| Molecular Weight | 238.76 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Flunarizine Standards
- Flunarizine impurity 43 (CAS 1133842-25-7)
- Flunarizine Impurity 59 (CAS 114312-65-1)
- Flunarizine impurity 57 (CAS 114374-24-2)
- Flunarizine Impurity N1 (CAS 123375-94-0)
- Flunarizine Impurity N1 HCl (CAS 123375-94-0(free base))
- Flunarizine impurity 46 (CAS 1368426-98-5(free base))
- Flunarizine Impurity 32 (CAS 141528-78-1)
- Flunarizine Impurity 26 (CAS 144917-53-3)
Recommended Standards
- Cefcapene Impurity 50 (CAS CATO-C4X-182450)
- Ornidazole Impurity 90 (CAS CATO-C4X-133190)
- Amiloride EP Impurity C HCl (CAS 1207-29-0)
- 3-(2,3-Dimethylbenzofuran-5-yl)-3H-[1,2,3]triazolo[4,5-b]pyridine (CAS 62490-32-8)
- N-propylpiperidine-3-carboxamide (CAS 1016521-91-7)
- Benzyl ((1S,2R)-2-hydroxycyclohexyl)carbamate (CAS 187334-05-0)
- trans-3-Hydroxy-N,N-dimethylcyclobutane-1-carboxamide (CAS 2837904-99-9)
- 2-Benzyl-4-nitrophenol (CAS 753009-59-5)
- 5-Bromo-2-picoline (CAS 3430-13-5)
- Semaglutide Main Chain P29 (CAS 1169630-82-3)
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