3-(2-Fluorophenyl)isoxazole-5-carboxylic acid CAS 842973-74-4
| CAS No. | 842973-74-4 |
| Molecular Formula | C10H6FNO3 |
| Molecular Weight | 207.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C10H6FNO3, 3-(2-Fluorophenyl)isoxazole-5-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 207.16 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.
CATO supplies 3-(2-Fluorophenyl)isoxazole-5-carboxylic acid (CAS 842973-74-4), a certified reference material (molecular formula C10H6FNO3, MW 207.16 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-(2-Fluorophenyl)isoxazole-5-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H6FNO3 |
| Molecular Weight | 207.16 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Fluorophenyl Standards
- 1-(2-Fluorophenyl)-1h-1,2,3-triazole-4-carboxylic acid (CAS 1038240-94-6)
- 5-(4-Fluorophenyl)oxazole-4-carboxylic acid (CAS 1083246-33-6)
- 5-(3-Fluorophenyl)-1,3-oxazole-4-carboxylic acid (CAS 1083401-22-2)
- 1-(3-Fluorophenyl)-1h-1,2,3-triazole-5-carboxylic acid (CAS 1153490-92-6)
- 1-(2-Fluorophenyl)-1h-1,2,3-triazole-5-carboxylic acid (CAS 1153491-02-1)
- 5-(3-Fluorophenyl)isoxazole-3-carboxylic acid (CAS 1188032-12-3)
- 1-(2-fluorophenyl)-1H-1,2,4-Triazole-3-carboxylic acid (CAS 1245648-20-7)
- 3-(2-Fluorophenyl)-4-nitro-1H-pyrazole (CAS 1247905-07-2)
Recommended Standards
- 2-Amino-6-fluoro-4-oxo-4H-1-benzopyran-3-carboxaldehyde (CAS 288399-47-3)
- 3-(3-Fluorophenyl)-1,2-oxazole-5-carboxylic acid (CAS 883541-40-0)
- 2-(6-Fluoro-3-indolyl)-2-oxoacetic Acid (CAS 913320-98-6)
- 3-(4-Fluorophenyl)-1H-1,2,4-triazole-5-carboxylic acid (CAS 944897-42-1)
- 6-(4-Amino-4-methyl-1-piperidinyl)-3-(2,3-dichlorophenyl)-2-pyrazinamine (CAS 1801747-42-1)
- 2-Chloro-6-sulfanylbenzonitrile (CAS 72371-52-9)
- Ethyl 2-(benzylthio)-2-methylpropanoate (CAS 62738-24-3)
- 6-Cyano-4-(difluoromethyl)-5-iodopyridine-3-sulfonamide (CAS 1805375-28-3)
- N-(4-Ethoxyphenyl)-2-((4-ethyl-5-(thiophen-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 571180-31-9)
- N-(5-Acetyl-4-methyl-1,3-thiazol-2-yl)-4-chlorobenzamide (CAS 303127-33-5)
- 1-(5-Aminopyridin-2-yl)-3-phenyl-4,5-dihydro-1H-pyrazol-5-one (CAS 1183213-07-1)
- ethyl 3-aminonaphthalene-2-carboxylate (CAS 5959-54-6)
- 3-(Ethoxymethyl)piperidine (CAS 868067-24-7)
- Cycloaspeptide A (CAS 109171-13-3)
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