Efinaconazole Impurity 13 CAS CATO-C4X-124313
| CAS No. | CATO-C4X-124313 |
| Molecular Formula | C13H15F2N3O4S |
| Molecular Weight | 347.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Efinaconazole Impurity 13 (CAS CATO-C4X-124313), a pharmacopoeial impurity reference standard (molecular formula C13H15F2N3O4S, MW 347.34 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C13H15F2N3O4S, Efinaconazole Impurity 13 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 347.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C13H15F2N3O4S |
| Molecular Weight | 347.34 g/mol |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Efinaconazole Standards
- Efinaconazole Impurity 40 (CAS 161287-08-7)
- Efinaconazole impurity 52 (CAS CATO-C4X-124352)
- Efinaconazole Impurity 18 (CAS 2055038-61-2)
- Efinaconazole Impurity 19 (CAS 164650-45-7)
- Efinaconazole Impurity 20 (CAS 2055038-60-1)
- Efinaconazole Impurity 23 (CAS CATO-C4X-124323)
- Efinaconazole Impurity 39 (CAS 2122222-10-8)
- Efinaconazole (CAS 164650-44-6)
Recommended Standards
- Isavuconazole Impurity 218 (CAS CATO-C4X-1236218)
- Tofacitinib Impurity 234 (CAS CATO-C4X-1079234)
- N-(4-Fluorobenzyl)-3-hydroxy-9,9-dimethyl-4-oxo-4,6,7,9-tetrahydropyrimido[2,1-c][1,4]oxazine-2-carboxamide (CAS 870558-24-0)
- Ciprofloxacin Impurity 41 (CAS CATO-C4X-136241)
- Lapatinib Impurity 25 (CAS 231278-20-9)
- Empagliflozin impurity 222 (CAS CATO-C4X-1065222)
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- 4-Bromo-1,3-dihydroisobenzofuran (CAS 1402667-16-6)
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- Methyl 4-(4-chloro-2-methoxyphenyl)-3-fluorobenzoate (CAS 1820684-86-3)
- Gly-Neuroendocrine Regulatory Peptide-3 (human, mouse, rat) trifluoroacetate salt (CAS 1815618-19-9)
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