5-Isopropylisoxazole-3-carboxylic acid
5-Isopropylisoxazole-3-carboxylic acid (CAS 89776-74-9) is a heterocyclic organic compound with the molecular formula C7H9NO3 and a molecular weight of 155.15 g/mol. Supplied by Tech Serve Solutions at a minimum assay of 97%, this isoxazole derivative serves as a valuable building block in chemical synthesis. Its structure lends itself to incorporation into more complex molecules within various research and development sectors.

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of novel organic compounds. Its isoxazole core and carboxylic acid functionality allow for diverse chemical transformations.
Heterocyclic Chemistry Research
Employed in academic and industrial research focused on heterocyclic chemistry. The isoxazole moiety is a common structural motif in many biologically active molecules.
Pharmaceutical Building Block
Serves as a fundamental building block for the development of potential pharmaceutical agents. Its structure can be modified to create diverse molecular scaffolds for drug discovery.
| Molecular weight | 155.15 |
|---|---|
| Empirical formula | C7H9NO3 |
| Assay | 97% |
| Melting point | 69-73 °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 5-Isopropylisoxazole-3-carboxylic acid used for?
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5-Isopropylisoxazole-3-carboxylic acid is primarily used as a building block in organic synthesis and heterocyclic chemistry research, with potential applications in the development of pharmaceutical agents.
What are the CAS number and formula for 5-Isopropylisoxazole-3-carboxylic acid?
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The CAS number is 89776-74-9 and the empirical formula is C7H9NO3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Isopropylisoxazole-3-carboxylic acid with a minimum assay of 97%. This compound is not represented as USP, BP, or EP grade.
What are the safety and handling precautions for 5-Isopropylisoxazole-3-carboxylic acid?
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Handling requires personal protective equipment including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. Refer to the Safety Data Sheet for comprehensive information.
How is 5-Isopropylisoxazole-3-carboxylic acid packed, shipped, and exported?
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Tech Serve Solutions specialises in global export, ensuring appropriate packaging for safe transit and compliance with international shipping regulations.
How can I request a quote or sample for 5-Isopropylisoxazole-3-carboxylic acid?
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Please contact our sales team via the website or your dedicated account manager to request a quote or sample of 5-Isopropylisoxazole-3-carboxylic acid.
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