Difluprednate Impurity N2 CAS 2326-26-3
| CAS No. | 2326-26-3 |
| Molecular Formula | C23H26F2O5 |
| Molecular Weight | 420.45 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 420.45 g/mol gives Difluprednate Impurity N2 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Difluprednate Impurity N2 (CAS 2326-26-3), a pharmacopoeial impurity reference standard (molecular formula C23H26F2O5, MW 420.45 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C23H26F2O5, Difluprednate Impurity N2 contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 420.45 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), Difluprednate Impurity N2 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 | C23H26F2O5 |
| Molecular Weight | 420.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related Difluprednate Standards
- Difluprednate Impurity 3 (CAS 1234557-20-0)
- Difluprednate Impurity 2 (CAS 2285-44-1)
- Difluprednate Impurity 5 (CAS 1270039-29-6)
- Difluprednate Impurity N1 (CAS 23640-96-2)
- Difluprednate Impurity 1 (CAS CATO-C4X-21781)
- Difluprednate Impurity 6 (CAS 167997-12-8)
- Difluprednate Impurity 4 (CAS 1296262-60-6)
- Difluprednate (CAS 23674-86-4)
Recommended Standards
- Carpalasionin (CAS 83150-97-4)
- Mycophenolic Acid Carboxybutoxy Ether (CAS 931407-27-1)
- Auriculasin (CAS 60297-37-2)
- N-((1S,2S)-2-Amino-1,2-diphenylethyl)-4-(trifluoromethyl)benzenesulfonamide (CAS 410096-73-0)
- Enzalutamide Impurity 15 (CAS 1895865-10-7)
- Idebenone Impurity 6 (CAS CATO-C4X-30166)
- Sepiapterin Impurity 13 (CAS CATO-C4X-276613)
- Fmoc-3,3-dimethylcyclobutane-1-methylamino-1-carboxylic acid (CAS 2025106-27-6)
- 1-(3-Chloro-4-(pentyloxy)phenyl)ethanol (CAS 1443340-49-5)
- 1-(4,5,6,7-Tetrahydrothieno[3,2-c]pyridin-2-yl)ethanone (CAS 1013210-87-1)
- N,2-Dihydroxyacetimidamide (CAS 73728-45-7)
- n-[3-(1-aminoethyl)phenyl]methanesulfonamide hydrochloride (CAS 1170616-25-7)
- 2-(3-Bromopropyl)tetrahydro-2H-pyran (CAS 68655-87-8)
- Allo-Thr7-Tirzepatide (CAS CATO-CPTD788933)
Why CATO?
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