3-Amino-5-(4-fluorophenyl)isoxazole
3-Amino-5-(4-fluorophenyl)isoxazole (CAS 925005-35-2) is a fluorinated heterocyclic building block with the empirical formula C9H7FN2O and a molecular weight of 178.16 g/mol. This compound serves as a valuable intermediate in organic synthesis, particularly for researchers and manufacturers developing novel fluorinated compounds and heterocyclic structures. Its chemical properties make it suitable for various research and development applications within the pharmaceutical and agrochemical industries.
- IUPAC
- 5-(4-Fluorophenyl) isoxazol-3-amine
- Synonyms
- 5-(4-Fluorophenyl) isoxazol-3-amine

Fluorinated Heterocycle Synthesis
Utilise 3-Amino-5-(4-fluorophenyl)isoxazole as a key building block for the construction of complex fluorinated heterocyclic molecules. Its structure is ideal for introducing both a fluorine atom and an isoxazole ring into target compounds.
Pharmaceutical Intermediate
This compound can be employed in the synthesis of potential pharmaceutical agents. The presence of the fluorophenyl and isoxazole moieties may contribute to desired pharmacokinetic or pharmacodynamic properties in drug discovery programs.
Agrochemical Research
Investigate its utility in the development of novel agrochemicals. Fluorinated heterocycles are often explored for their enhanced biological activity and stability in agricultural applications.
Organic Synthesis Reagent
Serves as a versatile reagent in general organic synthesis, allowing for functionalisation and elaboration into a wide array of chemical structures. Its specific reactivity profile is valuable for targeted synthetic routes.
| Molecular weight | 178.16 |
|---|---|
| Empirical formula | C9H7FN2O |
| Assay | 97% |
| Melting point | 127-132 °C |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 3-Amino-5-(4-fluorophenyl)isoxazole used for?
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3-Amino-5-(4-fluorophenyl)isoxazole is primarily used as a building block in organic synthesis, particularly for creating fluorinated heterocyclic compounds, and as an intermediate in pharmaceutical and agrochemical research.
What are the CAS number and molecular formula?
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The CAS number for 3-Amino-5-(4-fluorophenyl)isoxazole is 925005-35-2, and its molecular formula is C9H7FN2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound with a minimum purity of 97%. It is supplied as a technical or research grade chemical and is not represented as USP, BP, EP, or other pharmacopoeia grades.
How should 3-Amino-5-(4-fluorophenyl)isoxazole be handled?
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Handle this compound with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. It is classified as harmful if swallowed (H302).
Is this product suitable for international export?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals and can fulfil export orders for this product.
How can I request a quote or sample?
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Please contact our sales team via the website or by phone to request a quote or a sample of 3-Amino-5-(4-fluorophenyl)isoxazole.
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