Felbinac Trometamol Impurity 3 CAS CATO-C4X-33683
| CAS No. | CATO-C4X-33683 |
| Molecular Formula | C32H31NO5 |
| Molecular Weight | 509.59 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Felbinac Trometamol Impurity 3 (CAS CATO-C4X-33683) is a certified pharmaceutical impurity reference standard with the molecular formula C32H31NO5 and a molecular weight of 509.59 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Felbinac Trometamol Impurity 3 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 509.59 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C32H31NO5 |
| Molecular Weight | 509.59 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Felbinac Standards
- Felbinac Trometamol Impurity 5 (CAS CATO-C4X-33685)
- Felbinac Trometamol Impurity 2 (CAS CATO-C4X-33682)
- Felbinac Trometamol Impurity 1 (CAS CATO-C4X-33681)
- 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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