Fenbendazole Impurity 1 CAS CATO-C4X-31251
| CAS No. | CATO-C4X-31251 |
| Molecular Formula | C19H16F3N3O4S |
| Molecular Weight | 439.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Fenbendazole Impurity 1.
As a process- or degradation-related impurity, Fenbendazole Impurity 1 (CAS CATO-C4X-31251, C19H16F3N3O4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Fenbendazole Impurity 1 (C19H16F3N3O4S) contains a flavonoid core, an amide group, a sulfone 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 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 Fenbendazole Impurity 1 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 | C19H16F3N3O4S |
| Molecular Weight | 439.41 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Fenbendazole Standards
Recommended Standards
- N-Nitroso Lemborexant (CAS CATO-C4X-304258)
- Fexuprazan Impurity 1 (CAS CATO-C4X-31261)
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- Abemaciclib Impurity 31 4HCl (CAS CATO-C4X-293731)
- Nitrendipine EP Impurity C (CAS 21829-28-7)
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- 1-Butyl-4-iodo-3,5-dimethyl-1h-pyrazole (CAS 1525416-94-7)
- Desmopressin Impurity 20 (CAS CATO-C4X-221520)
- N-Me-D-Orn-OH.HCl (CAS 883879-00-3)
- (2R,4S)-N-Boc-4-hydroxypiperidine-2-carboxylic acid methyl ester (CAS 321744-26-7)
- L-Proline monohydrochloride (CAS 7776-34-3)
- Fibrinopeptide B (human) (CAS 36204-23-6)
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