Levocabastine EP Impurity K CAS CATO-C4X-228911
| CAS No. | CATO-C4X-228911 |
| Molecular Formula | C25H24FN2 |
| Molecular Weight | 371.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Levocabastine EP Impurity K is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Levocabastine EP Impurity K (CAS CATO-C4X-228911) is a certified pharmaceutical impurity reference standard with the molecular formula C25H24FN2 and a molecular weight of 371.47 g/mol.
Based on its molecular formula C25H24FN2, Levocabastine EP Impurity K contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 371.47 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 | C25H24FN2 |
| Molecular Weight | 371.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 14.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Levocabastine Standards
- Levocabastine EP Impurity A (CAS CATO-C4X-22891)
- Levocabastine EP Impurity D (CAS CATO-C4X-22894)
- Levocabastine (CAS 79516-68-0)
- Levocabastine EP Impurity B (CAS CATO-C4X-22892)
- Levocabastine Hydrochloride EP Impurity I (CAS CATO-C4X-228925)
- Levocabastine EP impurity E (CAS 105452-51-5)
- Levocabastine EP Impurity C (CAS CATO-C4X-22893)
- Levocabastine EP Impurity E (CAS CATO-C4X-22895)
Recommended Standards
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- Upadacitinib Impurity 13 (CAS 1708997-42-5)
- Ceftolozane impurity 2 (CAS 1956303-46-0)
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- ([D2]Gly4)-Cholecystokinin Octapeptide (sulfated) ammonium salt (CAS 1926163-74-7)
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