5-[2,6-dichloro-4-(trifluoromethyl)phenyl]-2-furaldehyde 2-[2,6-dichloro-4-(trifluoromethyl)phenyl]hydrazone CAS 259243-83-9
| CAS No. | 259243-83-9 |
| Molecular Formula | C19H8Cl4F6N2O |
| Molecular Weight | 536.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-[2,6-dichloro-4-(trifluoromethyl)phenyl]-2-furaldehyde 2-[2,6-dichloro-4-(trifluoromethyl)phenyl]hydrazone (CAS 259243-83-9) is a high-purity analytical reference standard with the molecular formula C19H8Cl4F6N2O and a molecular weight of 536.08 g/mol.
5-[2,6-dichloro-4-(trifluoromethyl)phenyl]-2-furaldehyde 2-[2,6-dichloro-4-(trifluoromethyl)phenyl]hydrazone (C19H8Cl4F6N2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C19H8Cl4F6N2O |
| Molecular Weight | 536.08 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related dichloro Standards
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Recommended Standards
- Clopidogrel Impurity 34 (CAS 1331383-23-3)
- Montelukast Impurity 12 (CAS 807638-71-7)
- 2,2'-(5-Iodo-1,3-phenylene)bis(1,1,1,3,3,3-hexafluoropropan-2-ol) (CAS 53173-72-1)
- Montelukast Impurity 58 (CAS CATO-C4X-103158)
- 3-Bromo-5-fluoro-4-formylbenzonitrile (CAS 2219379-93-6)
- Methyl 2-(oxetan-3-yl)acetate (CAS 1217800-69-5)
- 4-Chloro-7-isopropyl-N-propyl-7H-pyrrolo[2,3-d]pyrimidin-2-amine (CAS 1380343-11-2)
- 4-(4,6-Dimethyl-2-oxopyrimidin-1(2H)-yl)butanoic acid hydrochloride (CAS 1185293-26-8)
- (4-(Tert-butyl)thiazol-2-yl)methanol hydrochloride (CAS 1269052-60-9)
- 2-(4,5,6,7-Tetrahydro-1H-1,3-benzodiazol-2-yl)ethan-1-amine Dihydrochloride (CAS 88883-75-4)
- Nintedanib Impurity 74 (CAS CATO-C4X-181474)
- Tetracaine Impurity 16 (CAS CATO-C4X-192316)
- N-Cyclohexyl-5-propyl-1-(p-tolyl)-1H-1,2,3-triazole-4-carboxamide (CAS 950231-55-7)
- D-Thr7-Tirzepatide (CAS CATO-CPTD788924)
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