Efinaconazole Impurity 24 CAS CATO-C4X-124324
| CAS No. | CATO-C4X-124324 |
| Molecular Formula | C18H22F2N4O2 |
| Molecular Weight | 364.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Efinaconazole Impurity 24 (CAS CATO-C4X-124324), a pharmacopoeial impurity reference standard (molecular formula C18H22F2N4O2, MW 364.39 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Efinaconazole Impurity 24 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 364.39 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Efinaconazole Impurity 24 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C18H22F2N4O2 |
| Molecular Weight | 364.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related Efinaconazole Standards
- Efinaconazole Impurity 26 (CAS 2055038-63-4)
- Efinaconazole Impurity 32 (CAS CATO-C4X-124332)
- Efinaconazole Impurity 2 (CAS 135133-23-2)
- Efinaconazole-D4 (CAS 164650-44-6 (unlabeled))
- Efinaconazole-d4 (CAS CATO-C4X-124350)
- Efinaconazole Impurity 18 (CAS 2055038-61-2)
- Efinaconazole Impurity 19 (CAS 164650-45-7)
- Efinaconazole Impurity 20 (CAS 2055038-60-1)
Recommended Standards
- Tadalafil Impurity 28 (CAS CATO-C4X-108728)
- Tert-butyl2-(4-(benzyloxy)-1-ethoxy-1,3-dioxobutan-2-ylidene)hydrazine-1-carboxylate (CAS 1674398-09-4)
- rac O-Demethyl Ambrisentan (CAS 1106685-85-1)
- Spiro[fluorene-9,9'-xanthene]-3',6'-diol (CAS 4081-00-9)
- Epinastine impurity 59 (CAS CATO-C4X-184059)
- Benidipine Impurity N50 (CAS 1353946-52-7)
- Revefenacin Impurity 11 (CAS 3001303-52-9)
- N-(3-ethyl-4-fluorophenyl)thietan-3-amine (CAS 1863406-60-3)
- n-(4-Methylpiperidin-3-yl)cyclobutanecarboxamide (CAS 1340510-84-0)
- Acetonitrile with 0.1% ammonium acetate (CAS 148642-19-7)
- Methyl 4-oxo-3,4-dihydrophthalazine-1-carboxylate (CAS 53960-10-4)
- 4-Hydroxy-3-(methylsulfonamido)benzamide (CAS 1243284-33-4)
- 2-Amino-6,7-dihydro-5H-cyclopenta[d]pyrimidine (CAS 108990-72-3)
- Staphylococcus Aureus Protein A (SpA)-Derived Peptide (H-2228.0005) (CAS 144979-26-0)
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