Felbinac Trometamol Impurity 1 CAS CATO-C4X-33681
| CAS No. | CATO-C4X-33681 |
| Molecular Formula | C46H41NO6 |
| Molecular Weight | 703.82 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Felbinac Trometamol Impurity 1 (CAS CATO-C4X-33681), a pharmacopoeial impurity reference standard (molecular formula C46H41NO6, MW 703.82 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Felbinac Trometamol Impurity 1 (C46H41NO6) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 27.0, corresponding to approximately 27 ring(s) or double-bond equivalent(s). With a molecular weight of 703.82 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C46H41NO6 |
| Molecular Weight | 703.82 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 27.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Felbinac Standards
- Felbinac Trometamol Impurity 3 (CAS CATO-C4X-33683)
- Felbinac Trometamol Impurity 5 (CAS CATO-C4X-33685)
- Felbinac Trometamol Impurity 2 (CAS CATO-C4X-33682)
- Felbinac Trometamol Impurity 4 (CAS CATO-C4X-33684)
- Felbinac impurity 4 (CAS 1286423-88-8)
- Felbinac Impurity 4 (CAS 4575-44-4)
- Felbinac Impurity 3 (CAS 26140-60-3)
- Felbinac Impurity 2 (CAS 5728-52-9)
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