Flurbiprofen Impurity 47 CAS 1912791-27-5
| CAS No. | 1912791-27-5 |
| Molecular Formula | C11H13NO5 |
| Molecular Weight | 239.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Flurbiprofen Impurity 47 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, Flurbiprofen Impurity 47 (CAS 1912791-27-5, C11H13NO5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Flurbiprofen Impurity 47 (C11H13NO5) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C11H13NO5 |
| Molecular Weight | 239.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
Related Flurbiprofen Standards
- Flurbiprofen Impurity 92 (CAS CATO-C4X-144492)
- Flurbiprofen Impurity 99 (CAS CATO-C4X-144499)
- Flurbiprofen Impurity 68 (CAS CATO-C4X-144468)
- Flurbiprofen Impurity 60 (CAS 78543-07-4)
- Flurbiprofen Impurity 34 (CAS 52806-89-0)
- Flurbiprofen Impurity 36 (CAS CATO-C4X-144436)
- Flurbiprofen Impurity 158 (CAS CATO-C4X-1444158)
- Flurbiprofen impurity 120 (CAS 87657-78-1)
Recommended Standards
- Oxybuprocaine Impurity 6 (CAS 72101-53-2)
- (S)-2-amino-3-(4-(2-hydroxyacetoxy)phenyl)propanoic acid (CAS CATO-C3D-262528)
- Lenalidomide impurity 72 (CAS CATO-C4X-190372)
- 333755-69-4 [2-(4-Methoxy-phenoxy)-acetylamino]-acetic acid (CAS 333755-69-4)
- Ebastine Impurity 19 (CAS CATO-C4X-202919)
- Articaine Hydrochloride EP Impurity I (CAS 85006-31-1)
- N-Acetyl Mesalamine-d3 Impurity 1 (CAS 1309935-89-4)
- (5Z)-2-(Methylsulfanyl)-5-[(3-methylthiophen-2-yl)methylidene]-4,5-dihydro-1,3-thiazol-4-one (CAS 866050-40-0)
- Methyl[(6-methylpyridin-2-yl)methyl]amine dihydrochloride (CAS 128739-14-0)
- 1-([1,1'-Biphenyl]-4-yl)-3-((4-chlorophenyl)amino)propan-1-one (CAS 279672-38-7)
- 8-Methoxy-d (CAS 80386-99-8)
- Mizolastine impurity 16 (CAS CATO-C4X-200616)
- Tert-butyl 4-[4-(aminomethyl)-1h-1,2,3-triazol-1-yl]piperidine-1-carboxylate (CAS 1229516-72-6)
- Semaglutide impurity 244(Fmoc-His(Fmoc)-Aib-OH) (CAS CATO-C4X-2226244)
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