Levocabastine impurity 17 CAS CATO-C4X-228917
| CAS No. | CATO-C4X-228917 |
| Molecular Formula | C15H14FNO3 |
| Molecular Weight | 275.27 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 275.27 g/mol gives Levocabastine impurity 17 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Levocabastine impurity 17 (CAS CATO-C4X-228917), a pharmacopoeial impurity reference standard (molecular formula C15H14FNO3, MW 275.27 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C15H14FNO3, Levocabastine impurity 17 contains a nitrogen-containing heterocyclic scaffold, 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 275.27 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Levocabastine impurity 17 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C15H14FNO3 |
| Molecular Weight | 275.27 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Levocabastine Standards
- Levocabastine impurity 22 (CAS CATO-C4X-228922)
- Levocabastine EP Impurity F (CAS 785021-81-0)
- Levocabastine impurity 24 (CAS CATO-C4X-228924)
- Levocabastine EP Impurity F (CAS 793621-70-2)
- Levocabastine Impurity 9 (CAS 179064-61-0)
- Levocabastine EP Impurity H (CAS 56326-98-8)
- Levocabastine Impurity 11 (CAS 577036-07-8)
- Levocabastine EP Impurity H (CAS CATO-C4X-22898)
Recommended Standards
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- Alternariol Monomethyl Ether-d3 (CAS CATO-CCPD103209)
- Clindamycin Impurity 16 (CAS 1123211-66-4)
- Ceftazidime Impurity 21 (CAS CATO-C4X-121221)
- Simethicone Impurity N5 (CAS 7445-36-5)
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- 7-Bromo-3-methyl-3,4-dihydro-2H-benzo[e][1,3]oxazin-2-one (CAS 2020021-56-9)
- 2-(4-Bromophenyl)-3,4-diphenylisoxazol-5(2H)-one (CAS 90283-19-5)
- tert-Butyl 2-formyl-2-methylpyrrolidine-1-carboxylate (CAS 946484-82-8)
- N-(2-Aminophenyl)-4-((6-methoxy-1H-indazol-1-yl)methyl)benzamide (CAS 920315-17-9)
- Ethyl 7-(furan-2-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 102269-47-6)
- Semaglutide impurity 257 (CAS CATO-C4X-2226257)
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