Rupatadine Impurity 41 CAS CATO-C4X-102741
| CAS No. | CATO-C4X-102741 |
| Molecular Formula | C26H27ClFN3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Rupatadine Impurity 41 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.
As a process- or degradation-related impurity, Rupatadine Impurity 41 (CAS CATO-C4X-102741, C26H27ClFN3C4H4O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C26H27ClFN3C4H4O4, Rupatadine Impurity 41 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 552.04 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.
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 | C26H27ClFN3 C4H4O4 |
| Molecular Weight | 552.04 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related Rupatadine Standards
- Rupatadine Impurity 21 (CAS 1007089-84-0)
- Rupatadine Impurity 24 (CAS 100910-66-5)
- Rupatadine Impurity 3 (CAS 102074-19-1)
- Rupatadine impurity 1 (CAS 1118754-56-5)
- Rupatadine impurity 14 (CAS 1210824-61-5)
- Rupatadine EP Impurity C (CAS 1224515-72-3)
- Rupatadine Impurity 4 (CAS 1235342-53-6)
- Rupatadine EP Impurity A (CAS 1354055-68-7)
Recommended Standards
- Clonidine EP Impurity B (CAS 54707-71-0)
- Baloxavir Impurity 115 (CAS CATO-C4X-2108115)
- Omeprazole Impurity 37 (CAS CATO-C4X-125537)
- 2,2,2-trifluoro-1-(1,3,5-trimethyl-1H-pyrazol-4-yl)ethan-1-one (CAS 1306606-56-3)
- Ethyl Imidazo[1,5-a]pyridine-1-carboxylate (CAS 119448-87-2)
- N-(5-Chloro-4-fluoro-2-methylphenyl)acetamide (CAS 1434142-01-4)
- 3,6,9,12-Tetraoxahexadecan-1-ol (CAS 1559-34-8)
- Ethyl 3-hydroxy-3,3-diphenylpropanoate (CAS 894-18-8)
- Tetrakis(2-propynyloxymethyl)methane (CAS 127751-08-0)
- Semaglutide Impurity 122 (CAS CATO-C4X-2226122)
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