Etofenamate Impurity 2 CAS CATO-C4X-26032
| CAS No. | CATO-C4X-26032 |
| Molecular Formula | C18H17F3N2O5 |
| Molecular Weight | 398.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Etofenamate Impurity 2 (C18H17F3N2O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Etofenamate Impurity 2 (CAS CATO-C4X-26032, C18H17F3N2O5) 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.
CATO manufactures Etofenamate Impurity 2 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H17F3N2O5 |
| Molecular Weight | 398.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; 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 |
| Nitrogen Atoms | 2 |
Related Etofenamate Standards
- Etofenamate Impurity 7 (CAS CATO-C4X-26037)
- Etofenamate EP Impurity E (CAS CATO-C4X-26038)
- Etofenamate (CAS 30544-47-9)
- Etofenamate Impurity 10 (CAS CATO-C4X-260310)
- Etofenamate Impurity 9 (CAS CATO-C4X-26039)
- Etofenamate EP Impurity G (CAS 32508-98-8)
- Etofenamate Impurity N9 (CAS 68749-59-7)
- Etofenamate Impurity 11 (CAS CATO-C4X-260311)
Recommended Standards
- Losartan Impurity 46 (CAS 757149-84-1)
- Resmetirom Impurity 27 (CAS CATO-C4X-291227)
- N-benzyl-5-oxo-2-(trifluoromethyl)-5H-chromeno[2,3-b]pyridine-3-carboxamide (CAS 339020-73-4)
- tert-Butyl 3-(3,5-bis(trifluoromethyl)phenyl)piperazine-1-carboxylate (CAS 1060807-74-0)
- Clarithromycin EP Impurity F (CAS 128940-83-0)
- Dapagliflozin Impurity 25 (CAS 2452300-94-4)
- Doxofylline impurity 44 (CAS CATO-C4X-151344)
- N-isopropyl-5-methyl-1,2,4-oxadiazol-3-amine (CAS 2455428-80-3)
- 1-(3,4-Dichlorophenyl)-3-(p-tolyl)propan-1-one (CAS 898769-28-3)
- N-(4-Bromo-3-methylphenyl)-4-methoxybenzamide (CAS 111142-32-6)
- 3-(4-Chlorophenyl)-7-hydroxy-2-methyl-4H-chromen-4-one (CAS 314243-91-9)
- 2-[({5-[(2-Carboxybenzoyl)amino]-1-naphthyl}amino)carbonyl]benzoic acid (CAS 129684-51-1)
- Methylpentafluorobenzene (CAS 771-56-2)
- Antistasin-Related Peptide (CAS 161561-46-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com