5-(2-Chloro-4-fluorophenyl)-oxazole CAS 2004517-65-9
| CAS No. | 2004517-65-9 |
| Molecular Formula | C9H5ClFNO |
| Molecular Weight | 197.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-(2-Chloro-4-fluorophenyl)-oxazole 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.
5-(2-Chloro-4-fluorophenyl)-oxazole (CAS 2004517-65-9), molecular formula C9H5ClFNO and molecular weight 197.59 g/mol, is a CATO reference standard with documented purity and traceability.
5-(2-Chloro-4-fluorophenyl)-oxazole (C9H5ClFNO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point; 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).
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.
Physical & Chemical Properties
| Molecular Formula | C9H5ClFNO |
| Molecular Weight | 197.59 g/mol |
| Appearance | Off-white to pale 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
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Recommended Standards
- 3-Chloro-6-fluoroquinolin-4(1H)-one (CAS 724787-80-8)
- 5-(2-Chloro-6-fluorophenyl)oxazole (CAS 2021428-58-8)
- 3-(4-Chloro-2-fluorophenyl)-3-oxopropanenitrile (CAS 267880-83-1)
- 5-(4-Chloro-2-fluorophenyl)oxazole (CAS 2020663-34-5)
- 4-(Cyclopentyloxy)thiophene-2-carboxylic acid (CAS 1520354-95-3)
- 3-Chloro-6-(difluoromethyl)pyridin-2(1H)-one (CAS 1806787-45-0)
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- 1-(2-Chlorophenyl)-5-isopropyl-1h-pyrazol-4-amine (CAS 1245007-62-8)
- 1-(4-(trifluoromethoxy)phenyl)ethanamine (hydrochloride) (CAS 2347533-71-3)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com