Butenafine Impurity 15 CAS 191668-01-6
| CAS No. | 191668-01-6 |
| Molecular Formula | C23H19NO |
| Molecular Weight | 325.40 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, Butenafine Impurity 15 (CAS 191668-01-6, C23H19NO) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C23H19NO, Butenafine Impurity 15 contains a steroid 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 325.40 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.
CATO manufactures Butenafine Impurity 15 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 | C23H19NO |
| Molecular Weight | 325.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2011 |
| Nitrogen Atoms | 1 |
Related Butenafine Standards
- Butenafine Impurity 3 (CAS 122152-13-0)
- Butenafine Impurity 22 (CAS CATO-C4X-159622)
- Butenafine Impurity 11 (CAS 110951-99-0)
- Butenafine Impurity 14 (CAS 124830-38-2)
- Butenafine (CAS 101828-21-1)
- Butenafine Impurity 7 (CAS 5418-22-4)
- Butenafine Impurity 16 (CAS CATO-C4X-159616)
- Butenafine Impurity 18 (CAS CATO-C4X-159618)
Recommended Standards
- Loratadine Impurity 94 (CAS CATO-C4X-142694)
- LCZ-696 Impurity 57 (CAS 149709-58-0)
- Salbutamol Impurity 117 (CAS CATO-C4X-1176117)
- LCZ-696 Impurity 81 (CAS CATO-C4X-169681)
- Neostigmine impurity 31 (CAS 22237-93-0（free base）)
- Arbidol Impurity 24 (CAS CATO-C4X-112924)
- Oseltamivir impurity 63 (CAS CATO-C4X-1720263)
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- Fibrinogen Related Peptide (CAS 80755-86-8)
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