5-Isopropylisoxazole-4-carboxylic acid
5-Isopropylisoxazole-4-carboxylic acid (CAS: 134541-05-2) is a heterocyclic organic compound with the molecular formula C7H9NO3 and a molecular weight of 155.15 g/mol. This isoxazole derivative functions as a valuable building block in organic synthesis, particularly for constructing more complex molecular architectures. Its primary utility lies in research and development settings for the creation of novel chemical entities, often within the pharmaceutical and agrochemical sectors.

Organic Synthesis Intermediate
Serves as a key intermediate in the synthesis of various organic compounds. Its isoxazole ring and carboxylic acid functionality allow for diverse chemical transformations and the introduction of specific structural motifs into target molecules.
Pharmaceutical Research
Utilised in medicinal chemistry research for the development of potential drug candidates. The isoxazole scaffold is present in several biologically active compounds, making this acid a useful starting material for exploring new therapeutic agents.
Agrochemical Development
Can be employed in the design and synthesis of novel agrochemicals, such as pesticides or herbicides. The structural features of the molecule may contribute to desired biological activity in agricultural applications.
Heterocyclic Chemistry
A useful reagent for chemists specialising in heterocyclic chemistry. It provides a readily available isoxazole core for building complex heterocyclic systems.
| Molecular weight | 155.15 |
|---|---|
| Empirical formula | C7H9NO3 |
| Assay | 97% |
| Melting point | 78-82 °C(lit.) |
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 5-Isopropylisoxazole-4-carboxylic acid used for?
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5-Isopropylisoxazole-4-carboxylic acid is primarily used as a building block and intermediate in organic synthesis, with applications in pharmaceutical research, agrochemical development, and general heterocyclic chemistry.
What is the CAS number and molecular formula for 5-Isopropylisoxazole-4-carboxylic acid?
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The CAS number is 134541-05-2, and the molecular formula is C7H9NO3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Isopropylisoxazole-4-carboxylic acid with a purity of 97%. We do not represent this product as USP, BP, or EP grade.
What are the safety and handling recommendations for this chemical?
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According to safety data, this compound is classified under WGK Germany 3. Handle with appropriate personal protective equipment in a well-ventilated area to avoid exposure. Consult the Safety Data Sheet (SDS) for comprehensive handling information.
How is 5-Isopropylisoxazole-4-carboxylic acid typically packed and exported?
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As a specialist global supplier, Tech Serve Solutions packages and exports chemicals according to international regulations to ensure safe and compliant transport.
How can I request a sample or quote for 5-Isopropylisoxazole-4-carboxylic acid?
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To request a sample or a quotation, please contact our sales department through the details provided on our website.
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