4-Fluorobenzisoxazol-3(2H)-one CAS 178747-83-6
| CAS No. | 178747-83-6 |
| Molecular Formula | C7H10FNO2 |
| Molecular Weight | 159.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-Fluorobenzisoxazol-3(2H)-one 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.
4-Fluorobenzisoxazol-3(2H)-one (CAS 178747-83-6) is a high-purity analytical reference standard with the molecular formula C7H10FNO2 and a molecular weight of 159.16 g/mol.
The molecular framework of 4-Fluorobenzisoxazol-3(2H)-one (C7H10FNO2) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, 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.
Physical & Chemical Properties
| Molecular Formula | C7H10FNO2 |
| Molecular Weight | 159.16 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2008 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Fluorobenzisoxazol Standards
Recommended Standards
- 4-(Vinylsulfonyl)isoxazole (CAS 1708199-23-8)
- 5-(Hydroxymethyl)thiazole-4-carboxylic acid (CAS 188891-43-2)
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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