4-(2,4-Difluorophenyl)benzaldehyde CAS 728918-75-0
| CAS No. | 728918-75-0 |
| Molecular Formula | C13H8F2O |
| Molecular Weight | 218.20 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.
4-(2,4-Difluorophenyl)benzaldehyde (CAS 728918-75-0) is a high-purity analytical reference standard with the molecular formula C13H8F2O and a molecular weight of 218.20 g/mol.
4-(2,4-Difluorophenyl)benzaldehyde (C13H8F2O) contains a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C13H8F2O |
| Molecular Weight | 218.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1986 |
| Halogen Content | F-containing |
Related Difluorophenyl Standards
- 2-(2,4-Difluorophenyl)benzaldehyde (CAS 1183323-64-9)
- 1-(3,4-Difluorophenyl)-2,2-dimethoxyethan-1-ol (CAS 1461708-78-0)
- (3,5-Difluorophenyl)(phenyl)methanone (CAS 179113-89-4)
- (2,5-Difluorophenyl)(phenyl)methanone (CAS 85068-36-6)
- (2,6-Difluorophenyl)(phenyl)methanone (CAS 59189-51-4)
- (3,4-Difluorophenyl)(phenyl)methanone (CAS 85118-07-6)
- 3-(2,4-Difluorophenyl)benzaldehyde (CAS 728918-77-2)
- 2-[(3,4-difluorophenyl)sulfanyl]propanoic acid (CAS 926213-05-0)
Recommended Standards
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