Phenytoin EP Impurity F CAS 51169-17-6
| CAS No. | 51169-17-6 |
| Molecular Formula | C16H14N2O2 |
| Molecular Weight | 266.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Phenytoin EP Impurity F (CAS 51169-17-6), a pharmacopoeial impurity reference standard (molecular formula C16H14N2O2, MW 266.29 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C16H14N2O2, Phenytoin EP Impurity F contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 266.29 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).
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.
CATO manufactures Phenytoin EP Impurity F 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 | C16H14N2O2 |
| Molecular Weight | 266.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 2 |
Related Phenytoin Standards
- Phenytoin Impurity N15 (CAS 2784-27-2)
- Phenytoin Impurity 2 (CAS 21083-47-6)
- Phenytoin-d10 (CAS 65854-97-9)
- Phenytoin Impurity 1 (CAS 5157-13-1)
- Phenytoin EP Impurity E (CAS 6802-95-5)
- Phenytoin Impurity 15 (CAS CATO-C4X-186415)
- Phenytoin Impurity 1 (CAS 61693-07-0)
- Phenytoin Impurity 22 (CAS CATO-C4X-186422)
Recommended Standards
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- Baclofen EP Impurity A (CAS 22518-27-0)
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- Mesalazine Impurity 47 (CAS 13300-63-5)
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- 2-(4-Chlorophenoxy)-2,2-difluoro-N-(2-fluorophenyl)acetamide (CAS 250714-69-3)
- 3-(2,4-Dichlorophenoxy)-5-trifluoromethylpyridine-2-carboxylic acid (CAS 2088941-87-9)
- 2-(1H-imidazol-1-yl)-8-nitroquinoline (CAS 330663-15-5)
- 2-Amino-5-bromo-3-iodobenzonitrile (CAS 1000577-44-5)
- Palmitoyl hexapeptide-6 (CAS 891498-01-4)
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