Efinaconazole Impurity 16 CAS CATO-C4X-124316
| CAS No. | CATO-C4X-124316 |
| Molecular Formula | C12H11F2N3O |
| Molecular Weight | 251.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Efinaconazole Impurity 16 (C12H11F2N3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 251.23 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Efinaconazole Impurity 16 (CAS CATO-C4X-124316) is a certified pharmaceutical impurity reference standard with the molecular formula C12H11F2N3O and a molecular weight of 251.23 g/mol.
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 certified reference material (CRM), Efinaconazole Impurity 16 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 | C12H11F2N3O |
| Molecular Weight | 251.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Efinaconazole Standards
- Efinaconazole (2S,3R) epoxide, 98% (CAS 132563-77-0)
- Efinaconazole Impurity 14 (CAS 135270-10-9)
- Efinaconazole Impurity 15 (CAS 135270-07-4)
- Efinaconazole Impurity 21 (CAS CATO-C4X-124321)
- Efinaconazole Impurity 30 (CAS 124627-86-7)
- Efinaconazole Impurity 47 (CAS CATO-C4X-124347)
- Efinaconazole Impurity 10 (CAS CATO-C4X-124310)
- Efinaconazole Impurity 6 (CAS CATO-C4X-12436)
Recommended Standards
- Isavuconazole Impurity 221 (CAS 1062201-83-5)
- Isavuconazole Impurity 195 (CAS CATO-C4X-1236195)
- 2-Acetamido-3-acetoxybenzoic Acid Methyl Ester (CAS 100193-10-0)
- Isavuconazole impurity 71 (CAS CATO-C4X-1236171)
- Metronidazole Impurity 18 (CAS 113385-77-6)
- Bupivacaine Impurity 34 (CAS 98348-30-2)
- Apatinib impurity 4 (CAS 1376710-40-5)
- 3-Chloro-2-(difluoromethoxy)-5-nitropyridine (CAS 1832583-47-7)
- (2E)-3-(Dimethylamino)-1-(2-methyl-1H-imidazol-5-yl)prop-2-en-1-one (CAS 251096-49-8)
- 4,4,5,5-Tetramethyl-2-(4-(p-tolyl)furan-2-yl)-1,3,2-dioxaborolane (CAS 2096339-63-6)
- 2-((1-Isopropyl-1h-pyrazol-3-yl)methyl)-4-methylpentanoic acid (CAS 1466266-09-0)
- Flecainide (hydrochloride) (CAS 57415-44-8)
- H-Phe-Pro-Arg-OH (CAS 37553-80-3)
- Semaglutide impurity 61 (CAS CATO-C4X-222661)
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