5-(2,5-Difluorophenyl)-1,3-oxazole CAS 2004718-99-2
| CAS No. | 2004718-99-2 |
| Molecular Formula | C9H5F2NO |
| Molecular Weight | 181.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-(2,5-Difluorophenyl)-1,3-oxazole (CAS 2004718-99-2), a certified reference material (molecular formula C9H5F2NO, MW 181.14 g/mol) for analytical method development and quality control.
5-(2,5-Difluorophenyl)-1,3-oxazole (C9H5F2NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine 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.
CATO manufactures 5-(2,5-Difluorophenyl)-1,3-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.
Physical & Chemical Properties
| Molecular Formula | C9H5F2NO |
| Molecular Weight | 181.14 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-containing |
| Nitrogen Atoms | 1 |
Related Difluorophenyl Standards
- 5-(3,5-Difluorophenyl)-1,3-oxazole (CAS 1235340-39-2)
- 5-(2,6-Difluorophenyl)isoxazole (CAS 138716-41-3)
- 5-(2,4-Difluorophenyl)isoxazole (CAS 138716-46-8)
- 5-(2,5-Difluorophenyl)isoxazole (CAS 138716-47-9)
- 3-(2,4-Difluorophenyl)-3-oxopropanenitrile (CAS 71682-95-6)
- 3-(3,5-Difluorophenyl)-3-oxopropanenitrile (CAS 842140-51-6)
- 5-(2,3-Difluorophenyl)oxazole (CAS 2021535-52-2)
- 5-(2,4-Difluorophenyl)oxazole (CAS 2002657-55-6)
Recommended Standards
- 5-(2,6-Difluorophenyl)-1,3-oxazole (CAS 2001301-55-7)
- 5-(3,4-Difluorophenyl)isoxazole (CAS 387358-54-5)
- 4-Acetyl-2,5-difluorobenzonitrile (CAS 198280-43-2)
- 5-(3,5-Difluorophenyl)isoxazole (CAS 874800-58-5)
- 3-Hydroxy-2-oxo-7-indolinesulfonic acid (CAS 1353501-00-4)
- 5-((3-Chloro-4-fluorophenoxy)methyl)-4-ethyl-4H-1,2,4-triazole-3-thiol (CAS 861444-14-6)
- 1,2-Di(pyridin-4-yl)ethene (CAS 1135-32-6)
- Tert-butyl 3-amino-5-phenylpiperidine-1-carboxylate (CAS 874361-26-9)
- Minoxidil Impurity 65 (CAS CATO-C4X-170065)
- 4-Acetamido-N-(2-(methylsulfonamido)ethyl)benzamide (CAS 1091476-41-3)
- 2-NP-AOZ-d4 (CAS 1007478-57-0)
- Methyl 2-(azetidin-3-yl)benzoate (CAS 1203799-68-1)
- 5-Ethoxyisophthalic acid (CAS 203626-61-3)
- Semaglutide impurity 256 (CAS CATO-C4X-2226256)
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