3-(4-Fluorophenyl)isoxazole-4-carboxylic acid CAS 334930-07-3
| CAS No. | 334930-07-3 |
| Molecular Formula | C10H6FNO3 |
| Molecular Weight | 207.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 207.16 g/mol gives 3-(4-Fluorophenyl)isoxazole-4-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-(4-Fluorophenyl)isoxazole-4-carboxylic acid (CAS 334930-07-3) is a high-purity analytical reference standard with the molecular formula C10H6FNO3 and a molecular weight of 207.16 g/mol.
The molecular framework of 3-(4-Fluorophenyl)isoxazole-4-carboxylic acid (C10H6FNO3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3-(4-Fluorophenyl)isoxazole-4-carboxylic acid 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 | 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.) | 2025 |
| 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
- 3-(4-Fluorophenyl)-1H-1,2,4-triazole-5-carboxylic acid (CAS 944897-42-1)
- 3-(4-Fluorophenyl)isoxazole-5-carboxylic acid (CAS 618383-48-5)
- 3-(3-Fluorophenyl)-1,2-oxazole-5-carboxylic acid (CAS 883541-40-0)
- 4-(4-Fluorophenyl)-1H-1,2,3-triazole-5-carboxylic acid (CAS 862112-00-3)
- Methyl 2-({[1-(4-methoxyphenyl)-2-oxo-4-phenylazetidin-3-yl]methyl}sulfanyl)benzoate (CAS 866049-18-5)
- 6,7-difluoro-2,3-dihydro-1H-indole-2,3-dione (CAS 158580-95-1)
- methyl 2-chloro-5-((2,6-dichloropyrimidin-4-yl)amino)benzoate (CAS 1394347-61-5)
- 1-(pyrimidin-4-yl)cyclopropan-1-amine hydrochloride (CAS 1246740-94-2)
- 4-Cyclopropyl-2-(methylsulfonyl)-6-(trifluoromethyl)pyrimidine (CAS 1263285-93-3)
- N-(4-Chlorophenyl)-3,5-bis(trifluoromethyl)benzamide (CAS 106376-49-2)
- 5-Hydroxy-7-methyl-2H-1,3-benzoxathiol-2-one (CAS 17631-00-4)
- N4-(2-Methoxyphenyl)-2-morpholino-5-nitropyrimidine-4,6-diamine (CAS 672944-29-5)
- (5E)-5-[(Furan-2-yl)methylidene]-2-[2-(2-hydroxyethyl)piperidin-1-yl]-4,5-dihydro-1,3-thiazol-4-one (CAS 866132-82-3)
- D-Leu14-Tirzepatide (CAS CATO-CPTD788920)
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