5-(2,5-Difluorophenyl)isoxazole CAS 138716-47-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 138716-47-9 |
| Molecular Formula | C9H5F2NO |
| Molecular Weight | 181.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(2,5-Difluorophenyl)isoxazole (CAS 138716-47-9) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C9H5F2NO. Molecular weight: 181.14 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
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)
- 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)
- 5-(2,5-Difluorophenyl)-1,3-oxazole (CAS 2004718-99-2)
Recommended Standards
- 3,6-difluoro-2-nitrophenol (CAS 139548-97-3)
- 2-(2-Oxo-2-(phenylamino)ethylidene)-N-phenyloxazolidine-3-carboxamide (CAS 14037-24-2)
- 5-(Trifluoromethyl)thiazole-2-carbaldehyde (CAS 1379174-19-2)
- trans-Hexahydro-5H-[1,4]dioxino[2,3-c]pyrrole hydrochloride (CAS 2138065-53-7)
- Chlorothalonil Impurity 1 (CAS 1418095-02-9)
- Methyl 5-chloro-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxylate (CAS 882679-04-1)
- 5-Methyl-4-(2-methyl-1,3-thiazol-4-yl)-1,2-oxazole (CAS 478049-18-2)
- 2-((2,4-Dichlorobenzyl)amino)-2-methylpropan-1-ol (CAS 774193-62-3)
- 5-Aminopentane-1-sulfonic acid (CAS 37043-68-8)
- (Leu31,Pro34)-Peptide YY (human) trifluoroacetate salt (CAS 179986-95-9)
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