Levocabastine Impurity 14 CAS CATO-C4X-228914
| CAS No. | CATO-C4X-228914 |
| Molecular Formula | C26H30FNO4 |
| 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 475.99 g/mol gives Levocabastine Impurity 14 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Levocabastine Impurity 14 (CAS CATO-C4X-228914) is a certified pharmaceutical impurity reference standard with the molecular formula C26H30FNO4HCl and a molecular weight of 475.99 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, Levocabastine Impurity 14 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 475.99 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C26H30FNO4 HCl |
| Molecular Weight | 475.99 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Levocabastine Standards
- Levocabastine EP impurity E (CAS 105452-51-5)
- Levocabastine Impurity 9 (CAS 179064-61-0)
- Levocabastine Impurity 4 (CAS 25115-74-6)
- Levocabastine EP Impurity H (CAS 56326-98-8)
- Levocabastine Impurity 11 (CAS 577036-07-8)
- Levocabastine EP Impurity F (CAS 785021-81-0)
- Levocabastine EP Impurity F (CAS 793621-70-2)
- Levocabastine (CAS 79516-68-0)
Recommended Standards
- Flupentixol Impurity 15 (CAS CATO-C4X-189515)
- Telmisartan Impurity 42 (CAS 1860008-29-2)
- Betamethasone EP Impurity I (CAS 185613-69-8)
- [2-(4-fluorophenyl)ethyl](propan-2-yl)amine (CAS 864960-92-9)
- 1,4-dimethylpyrrolidin-3-amine (CAS 1368129-80-9)
- 2-Methyl-1-(3-nitropyridin-2-yl)piperazine (CAS 622405-24-7)
- 4,5-Diamino-6-hydroxypyrimidine (CAS 1672-50-0)
- 1-(7-(2-Chlorophenyl)-1,4-thiazepan-4-yl)-3-methylbut-2-en-1-one (CAS 1798638-31-9)
- 2-Ethyl-N-(3-(imidazo[2,1-b]thiazol-6-yl)phenyl)butanamide (CAS 893970-24-6)
- Semaglutide impurity 276 (CAS CATO-C4X-2226276)
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