| CAS No. | 1998167-76-2 |
| Molecular Formula | C20H12F2O2 |
| Molecular Weight | 322.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
2',5'-Difluoro-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde (CAS 1998167-76-2) is a high-purity analytical reference standard with the molecular formula C20H12F2O2 and a molecular weight of 322.30 g/mol.
Based on its molecular formula C20H12F2O2, 2',5'-Difluoro-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 322.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 2',5'-Difluoro-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C20H12F2O2 |
| Molecular Weight | 322.30 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 |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | F-containing |