5-Cyclopropyl-3-(2-(trifluoromethoxy)phenyl)isoxazole-4-carboxylic acid CAS 2191433-23-3
| CAS No. | 2191433-23-3 |
| Molecular Formula | C14H10F3NO4 |
| Molecular Weight | 313.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Cyclopropyl-3-(2-(trifluoromethoxy)phenyl)isoxazole-4-carboxylic acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Cyclopropyl-3-(2-(trifluoromethoxy)phenyl)isoxazole-4-carboxylic acid (CAS 2191433-23-3) is a high-purity analytical reference standard with the molecular formula C14H10F3NO4 and a molecular weight of 313.23 g/mol.
5-Cyclopropyl-3-(2-(trifluoromethoxy)phenyl)isoxazole-4-carboxylic acid (C14H10F3NO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C14H10F3NO4 |
| Molecular Weight | 313.23 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, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 4-(Benzylamino)-3-nitro-6-(trifluoromethyl)pyridin-2-ol (CAS 947144-38-9)
- 5-Methyl-7-(perfluoroethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbohydrazide (CAS 832737-11-8)
- 2'-Bromospiro[cyclohexane-1,9'-fluorene] (CAS 797056-48-5)
- 5-Methyl-N4-[3-(trifluoromethyl)phenyl]-1,2-oxazole-3,4-dicarboxamide (CAS 338761-36-7)
- 7α-Hydroxy Pregnenolone (CAS 30626-96-1)
- 5-[2-(2,6-dioxo-3-piperidyl)-3-oxo-isoindolin-5-yl]oxypentanal (CAS 2591190-72-4)
- 1-(tert-Butoxycarbonyl)-2-oxopyrrolidine-3-carboxylic acid (CAS 1370018-07-7)
- 4-Benzyloxy-2-bromonitrobenzene (CAS 165190-62-5)
- Ethyl 3-iodoimidazo[1,2-a]pyridine-2-carboxylate (CAS 292858-07-2)
- 5-[(4-Methylphenyl)sulfanyl]-4-phenyl-1,2,3-thiadiazole (CAS 338398-44-0)
- 2-[(5-Chloro-3-pyridyl)methyl]isoindoline-1,3-dione (CAS 2006278-00-6)
- 2-[3,5-Bis(trifluoromethyl)phenyl]-N-methyl-Hydrazinecarbothioamide (CAS 24095-80-5)
- 1-Bromo-2-pentanone (CAS 817-71-0)
- Semaglutide impurity 36 (CAS CATO-C4X-222636)
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