3-Phenyl-5-isoxazolone
3-Phenyl-5-isoxazolone (CAS: 1076-59-1; Formula: C9H7NO2; MW: 161.16) is a heterocyclic organic compound. It serves as a versatile building block in chemical synthesis, particularly within the realm of isoxazole derivatives. This compound is recognised for its utility in constructing more complex molecular architectures, making it a valuable reagent for researchers and chemists engaged in organic synthesis and medicinal chemistry.

Organic Synthesis
Utilised as a key intermediate and building block in the synthesis of various organic compounds, facilitating the construction of novel molecular structures.
Heterocyclic Chemistry
Serves as a valuable precursor for the synthesis of diverse heterocyclic compounds, with a specific focus on isoxazole derivatives.
Research and Development
Employed in academic and industrial research settings for the exploration of new chemical pathways and the development of novel materials or pharmaceutical candidates.
| Molecular weight | 161.16 |
|---|---|
| Empirical formula | C9H7NO2 |
| Assay | 98% |
| Melting point | 155-158 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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-Phenyl-5-isoxazolone used for?
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3-Phenyl-5-isoxazolone is primarily used as a building block in organic synthesis and heterocyclic chemistry, particularly for creating isoxazole derivatives and more complex organic molecules in research and development.
What are the CAS number and formula for 3-Phenyl-5-isoxazolone?
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The CAS number for 3-Phenyl-5-isoxazolone is 1076-59-1, and its molecular formula is C9H7NO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Phenyl-5-isoxazolone with an assay of 98%. This product is suitable for research and chemical synthesis and is not represented as USP, BP, or EP grade.
What are the safety and handling precautions for 3-Phenyl-5-isoxazolone?
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Handling 3-Phenyl-5-isoxazolone requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. The compound is classified under WGK Germany 3, indicating a high hazard level.
How is 3-Phenyl-5-isoxazolone packed and shipped?
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Tech Serve Solutions expertly packs and ships chemicals globally, adhering to stringent quality and safety standards for international export.
How can I request a quote or sample for 3-Phenyl-5-isoxazolone?
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Please contact our sales team via the website or directly by phone to request a quote or a sample of 3-Phenyl-5-isoxazolone.
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