Flurbiprofen Impurity 75 CAS CATO-C4X-144475
| CAS No. | CATO-C4X-144475 |
| Molecular Formula | C25H31FO2 |
| Molecular Weight | 382.51 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C25H31FO2, Flurbiprofen Impurity 75 contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 382.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
As a process- or degradation-related impurity, Flurbiprofen Impurity 75 (CAS CATO-C4X-144475, C25H31FO2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
As a certified reference material (CRM), Flurbiprofen Impurity 75 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 | C25H31FO2 |
| Molecular Weight | 382.51 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
Related Flurbiprofen Standards
- Flurbiprofen Impurity 20 (CAS CATO-C4X-144420)
- Flurbiprofen Impurity 22(Mixture of Diastereomers) (CAS CATO-C4X-144422)
- Flurbiprofen Impurity 28 (CAS CATO-C4X-144428)
- Flurbiprofen Impurity 56 (CAS CATO-C4X-144456)
- Flurbiprofen Impurity 76 (CAS CATO-C4X-144476)
- Flurbiprofen Impurity 17 (Mixture of Diastereomers) (CAS CATO-C4X-144477)
- Flurbiprofen Impurity 96 (CAS CATO-C4X-144496)
- Flurbiprofen Menthyl Ester (CAS 908559-44-4)
Recommended Standards
- Buspirone EP Impurity C (CAS 257877-45-5)
- Erbium(III) oxide (CAS 12061-16-4)
- Perfluoroheptanoyl Chloride (CAS 52447-22-0)
- Eletriptan impurity 01 (CAS 1252673-29-2)
- Progesterone Impurity N5 (CAS 35525-27-0)
- Dequalinium Chloride EP Impurity B chloride (CAS 171980-52-2)
- Dabigatran Impurity 90 (CAS 1354892-78-6)
- 3-(4-Nitrophenyl)adamantane-1-carboxylic acid (CAS 7123-76-4)
- 2-(3-Fluoro-5-methylphenyl)propan-2-ol (CAS 1379349-17-3)
- Ethyl-3-isocyanobenzoate (CAS 730971-36-5)
- Dalfampridine Impurity 2 (CAS 4589-32-6)
- 3-Methyl-N-(pyridin-4-yl)butanamide (CAS 349426-26-2)
- 3-Chloro-4-(difluoromethoxy)benzimidamide (CAS 1250558-67-8)
- Tetrapeptide-3 (CAS 827306-97-8)
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