3-Methyl-5-phenylisoxazole
3-Methyl-5-phenylisoxazole (CAS 1008-75-9), with the molecular formula C10H9NO and a molecular weight of 159.18 g/mol, is a heterocyclic compound. This isoxazole derivative serves as a valuable building block in organic synthesis. Its well-defined structure and reactivity make it suitable for various chemical research and development applications, particularly within the synthesis of complex organic molecules.

Organic Synthesis Intermediate
3-Methyl-5-phenylisoxazole is employed as a key intermediate in the construction of more complex organic frameworks. Its isoxazole core can be further functionalised or transformed into other heterocyclic systems, facilitating diverse synthetic routes.
Research and Development
This compound is utilised in laboratory settings for research purposes, enabling chemists to explore novel chemical reactions and develop new synthetic methodologies. Its availability supports academic and industrial R&D efforts.
Heterocyclic Chemistry Studies
As an isoxazole derivative, it is a useful substrate for studying the chemistry of heterocyclic compounds. Researchers can investigate its reactivity and potential applications in medicinal chemistry or materials science.
| Molecular weight | 159.18 |
|---|---|
| Empirical formula | C10H9NO |
| Assay | 95% |
| Boiling point | 262-264 °C/760 mmHg |
| Melting point | 63-68 °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-Methyl-5-phenylisoxazole used for?
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3-Methyl-5-phenylisoxazole (CAS 1008-75-9) is primarily used as a building block and intermediate in organic synthesis and chemical research.
What is the CAS number and molecular formula for 3-Methyl-5-phenylisoxazole?
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The CAS number for 3-Methyl-5-phenylisoxazole is 1008-75-9, and its molecular formula is C10H9NO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Methyl-5-phenylisoxazole with an assay of 95%. TSS does not represent this product as USP, BP, EP, or other pharmacopoeial grades.
How should 3-Methyl-5-phenylisoxazole be handled?
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3-Methyl-5-phenylisoxazole is classified as harmful if swallowed (H302). Appropriate personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Handle with care in a well-ventilated area.
Can I request a sample or quote for 3-Methyl-5-phenylisoxazole?
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Yes, you can request a sample or a quote for 3-Methyl-5-phenylisoxazole by contacting our sales team through the website or by direct inquiry.
How is 3-Methyl-5-phenylisoxazole typically packed and exported?
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3-Methyl-5-phenylisoxazole is carefully packed to ensure stability during transport and is available for global export by Tech Serve Solutions.
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