Butenafine Impurity 20 CAS CATO-C4X-159620
| CAS No. | CATO-C4X-159620 |
| Molecular Formula | C24H27NO2 |
| Molecular Weight | 361.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Butenafine Impurity 20 (C24H27NO2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
CATO supplies Butenafine Impurity 20 (CAS CATO-C4X-159620), a pharmacopoeial impurity reference standard (molecular formula C24H27NO2, MW 361.48 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
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 | C24H27NO2 |
| Molecular Weight | 361.48 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Butenafine Standards
- Butenafine Impurity 18 (CAS CATO-C4X-159618)
- Butenafine Impurity 16 (CAS CATO-C4X-159616)
- Butenafine Impurity 22 (CAS CATO-C4X-159622)
- Butenafine Impurity 15 (CAS 191668-01-6)
- Butenafine Impurity 3 (CAS 122152-13-0)
- Butenafine Impurity 11 (CAS 110951-99-0)
- Butenafine Impurity 14 (CAS 124830-38-2)
- Butenafine (CAS 101828-21-1)
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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