5-Chloro-3-(4-Chloro-2-fluorophenyl)-1,2-oxazole-4-carbaldehyde CAS 1354937-95-3
| CAS No. | 1354937-95-3 |
| Molecular Formula | C10H4Cl2FNO2 |
| Molecular Weight | 260.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C10H4Cl2FNO2, 5-Chloro-3-(4-Chloro-2-fluorophenyl)-1,2-oxazole-4-carbaldehyde contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 260.05 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.
5-Chloro-3-(4-Chloro-2-fluorophenyl)-1,2-oxazole-4-carbaldehyde (CAS 1354937-95-3), molecular formula C10H4Cl2FNO2 and molecular weight 260.05 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C10H4Cl2FNO2 |
| Molecular Weight | 260.05 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
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- n-(2-Fluorobenzyl)tetrahydro-2h-thiopyran-4-amine (CAS 1153350-48-1)
- Ethyl 3-(2-(3,5-dimethyl-4-nitro-1h-pyrazol-1-yl)ethyl)-1,2,4-oxadiazole-5-carboxylate (CAS 1171327-12-0)
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- Pancreatic Polypeptide (31-36), amide, human (CAS 74012-13-8)
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