4-Fluoro-2-(5-isoxazolyl)phenol
4-Fluoro-2-(5-isoxazolyl)phenol (CAS 288401-62-7) is a fluorinated heterocyclic compound with the molecular formula C9H6FNO2 and a molecular weight of 179.15 g/mol. It serves as a valuable building block in organic synthesis, particularly for research and development in the pharmaceutical and agrochemical sectors. Its unique structural features make it a useful intermediate for introducing fluorinated isoxazole moieties into more complex molecules.

Pharmaceutical Intermediate
This compound is utilised in the synthesis of novel pharmaceutical candidates. The presence of both a phenol and an isoxazole ring, along with fluorine substitution, provides a versatile scaffold for drug discovery efforts.
Agrochemical Research
4-Fluoro-2-(5-isoxazolyl)phenol can be employed in the development of new agrochemicals. Its structural motifs may contribute to enhanced efficacy or altered biological activity in crop protection agents.
Organic Synthesis Building Block
As a fine chemical, it is offered for general organic synthesis, enabling chemists to construct complex molecular architectures. Its specific reactivity allows for targeted derivatisation in multi-step synthetic routes.
| Molecular weight | 179.15 |
|---|---|
| Empirical formula | C9H6FNO2 |
| Assay | 97% |
| Melting point | 188-192 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 4-Fluoro-2-(5-isoxazolyl)phenol used for?
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4-Fluoro-2-(5-isoxazolyl)phenol is primarily used as a building block in organic synthesis, finding applications in pharmaceutical research and the development of new agrochemicals.
What are the CAS number and chemical formula?
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The CAS number for 4-Fluoro-2-(5-isoxazolyl)phenol is 288401-62-7, and its chemical formula is C9H6FNO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Fluoro-2-(5-isoxazolyl)phenol with an assay of 97%. We do not represent this product as USP, BP, EP, or other pharmacopoeia grades.
What are the safety and handling precautions?
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This compound is classified as irritating to the skin, eyes, and respiratory system (H315-H319-H335). Handle with appropriate personal protective equipment, including eyeshields, gloves, and a dust mask (N95 type). Ensure good ventilation.
Is 4-Fluoro-2-(5-isoxazolyl)phenol a controlled substance?
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The provided data does not indicate that 4-Fluoro-2-(5-isoxazolyl)phenol is a controlled substance.
How is this chemical exported and shipped?
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Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 4-Fluoro-2-(5-isoxazolyl)phenol, adhering to all necessary shipping and export regulations.
How can I request a quote or sample?
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To request a quote or sample of 4-Fluoro-2-(5-isoxazolyl)phenol, please contact our sales team through the methods provided on the Tech Serve Solutions website.
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