Efinaconazole Impurity 20 CAS 2055038-60-1
| CAS No. | 2055038-60-1 |
| Molecular Formula | C18H22F2N4O |
| Molecular Weight | 348.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Efinaconazole Impurity 20 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 348.39 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 supplies Efinaconazole Impurity 20 (CAS 2055038-60-1), a pharmacopoeial impurity reference standard (molecular formula C18H22F2N4O, MW 348.39 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.
CATO manufactures Efinaconazole Impurity 20 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 | C18H22F2N4O |
| Molecular Weight | 348.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related Efinaconazole Standards
- Efinaconazole Impurity 18 (CAS 2055038-61-2)
- Efinaconazole Impurity 19 (CAS 164650-45-7)
- Efinaconazole Impurity 23 (CAS CATO-C4X-124323)
- Efinaconazole Impurity 39 (CAS 2122222-10-8)
- Efinaconazole (CAS 164650-44-6)
- Efinaconazole Impurity 13 (CAS CATO-C4X-124313)
- Efinaconazole Impurity 40 (CAS 161287-08-7)
- Efinaconazole impurity 52 (CAS CATO-C4X-124352)
Recommended Standards
- Terbutaline impurity 101 (CAS 1226543-90-3)
- Mycophenolate Mofetil Impurity 16 (CAS 32483-51-5)
- 2-[(3-{[(2-Methoxyethyl)amino]carbonyl}anilino)-carbonyl]cyclohexanecarboxylic acid 3809AF 940478-36-4 C18H24N2O5 (CAS 940478-36-4)
- Beraprost Impurity 22 (CAS 88277-22-9)
- Dexpanthenol impurity 31 (CAS 1112-32-9（free base）)
- Elagolix Impurity 98 (CAS CATO-C4X-206898)
- Nemonoxacin Impurity 28 (CAS 951163-63-6)
- 3-Methylquinoline-5-carboxylic acid (CAS 94975-86-7)
- N-((3-fluorophenyl)carbamothioyl)benzamide (CAS 82635-62-9)
- 4-(1-Nitronaphthalen-2-yl)-1-(p-tolyl)-3-(trifluoromethyl)-1H-pyrazole (CAS 321998-67-8)
- 4-Chloro-6,8-diiodoquinazoline (CAS 98436-53-4)
- 2,7-difluoro-9-oxo-9,10-dihydroacridine-4-carboxylic acid (CAS 1797801-23-0)
- 5,6,7-trifluoro-1-methyl-1H-1,3-benzodiazole (CAS 1528474-40-9)
- Pancreatic Polypeptide (31-36) Free Acid, human (CAS 192432-73-8)
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