Etofenamate EP Impurity C CAS 101-23-5
| CAS No. | 101-23-5 |
| Molecular Formula | C13H10F3N |
| Molecular Weight | 237.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Etofenamate EP Impurity C (C13H10F3N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Etofenamate EP Impurity C (CAS 101-23-5) is a certified pharmaceutical impurity reference standard with the molecular formula C13H10F3N and a molecular weight of 237.22 g/mol.
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 EP Impurity C 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 | C13H10F3N |
| Molecular Weight | 237.22 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Etofenamate Standards
- Etofenamate Impurity 1 (CAS 53451-87-9)
- Etofenamate Impurity 12 (CAS CATO-C4X-260312)
- Etofenamate Impurity 11 (CAS CATO-C4X-260311)
- Etofenamate Impurity 13 (CAS CATO-C4X-260313)
- Etofenamate Impurity N9 (CAS 68749-59-7)
- Etofenamate EP Impurity G (CAS 32508-98-8)
- Etofenamate Impurity 10 (CAS CATO-C4X-260310)
- Etofenamate Impurity 9 (CAS CATO-C4X-26039)
Recommended Standards
- Palbociclib Impurity 126 (CAS 2089333-12-8)
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- 5-Fluoro-2-(2-methylcyclopropane-1-carboxamido)benzoic acid (CAS 1016514-73-0)
- Ceftazidime EP Impurity C (CAS 3432-88-0)
- Pioglitazone impurity 28 (CAS 5408-74-2)
- Dapagliflozin Impurity 74 (CAS CATO-C4X-113874)
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- (2S,5R)-5-Isopropylpyrrolidine-2-carboxylic acid (CAS 110452-55-6)
- 4-Hydroxy-1-indanone (CAS 40731-98-4)
- Ioxitalamic Acid (CAS 28179-44-4)
- 1-{bicyclo[2.2.2]octan-1-yl}ethan-1-one (CAS 57032-01-6)
- N-(4-(Pyridin-4-yl)thiazol-2-yl)furan-2-carboxamide (CAS 476631-52-4)
- Stresscopin-Related Peptide (human) (CAS 348626-74-4)
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