Etofenamate Impurity 7 CAS CATO-C4X-26037
| CAS No. | CATO-C4X-26037 |
| Molecular Formula | C25H35NO4 |
| Molecular Weight | 413.55 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Etofenamate Impurity 7 (CAS CATO-C4X-26037, C25H35NO4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C25H35NO4, Etofenamate Impurity 7 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 413.55 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C25H35NO4 |
| Molecular Weight | 413.55 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Etofenamate Standards
- Etofenamate EP Impurity E (CAS CATO-C4X-26038)
- Etofenamate Impurity 2 (CAS CATO-C4X-26032)
- 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
- Ebastine Impurity 13 (CAS 97928-34-2)
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- 15-Keto Bimatoprost (CAS 1163135-96-3)
- UNC0379 (CAS 1620401-82-2)
- Fosaprepitant Impurity 5 (CAS CATO-C4X-11685)
- Methazolamide Impurity 4 (CAS CATO-C4X-34044)
- Deoxycholic acid Impurity 34 (CAS CATO-C4X-335934)
- MMPIP (CAS 479077-02-6)
- (3-Bromo-4-(piperidin-4-yl)phenyl)boronic acid (CAS 2225173-35-1)
- 25B-NBOH HCl RM (CAS 1539266-16-4)
- Lorazepam (CAS 846-49-1)
- 3-(Difluoromethyl)-4-fluoro-5-methoxypicolinonitrile (CAS 1807157-23-8)
- (1S,3R)-3-Acetyl-2,2-dimethylcyclobutane-1-carboxylic acid (CAS 22571-78-4)
- Peptide 436 (CAS CATO-CPTD788436)
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