Ethyl 5-hydroxy-3-methyl-4-isoxazolecarboxylate sodium salt hydrate
Ethyl 5-hydroxy-3-methyl-4-isoxazolecarboxylate sodium salt hydrate (CAS 207291-72-3) is a heterocyclic organic compound. Characterised by its isoxazole ring and carboxylate sodium salt hydrate form, it serves as a valuable building block in chemical synthesis. Its molecular formula is C7H8NNaO4 · xH2O, with a molecular weight of 193.13 on an anhydrous basis. This compound is primarily used in research and development settings for the creation of novel molecules.

Organic Synthesis Intermediate
Acts as a key intermediate in the synthesis of more complex organic molecules. Its structure lends itself to various chemical transformations in the development of new compounds.
Heterocyclic Chemistry Research
Utilised in academic and industrial research focused on heterocyclic chemistry, particularly within the isoxazole class. It enables the exploration of new synthetic pathways and molecular architectures.
Pharmaceutical Intermediate Development
Serves as a potential building block for the discovery and synthesis of new pharmaceutical agents. Its functional groups can be modified to create diverse molecular scaffolds for drug discovery.
| Molecular weight | 193.13 (anhydrous basis) |
|---|---|
| Empirical formula | C7H8NNaO4 · xH2O |
| Assay | 97% |
| Melting point | 276-277 °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 Ethyl 5-hydroxy-3-methyl-4-isoxazolecarboxylate sodium salt hydrate used for?
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This compound is primarily used as a building block in chemical synthesis, particularly in heterocyclic chemistry and for the development of potential pharmaceutical intermediates.
What are the CAS number and molecular formula?
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The CAS number is 207291-72-3. The molecular formula is C7H8NNaO4 · xH2O, with an anhydrous molecular weight of 193.13.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product with an assay of 97%. We do not represent this product as USP, BP, EP, or other pharmacopoeial grades unless explicitly stated.
What are the safety and handling precautions?
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This compound is a Warning substance, causing skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Use a dust mask type N95 (US), wear eyeshields and gloves. Ensure good ventilation. Avoid breathing dust. Avoid contact with skin and eyes.
How is this chemical shipped and exported?
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Tech Serve Solutions is a global supplier and exporter of fine chemicals, equipped to handle international shipping and export requirements with appropriate documentation and packaging.
How can I request a sample or quote for this product?
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You can request a sample or obtain a quote by contacting our sales team through the website or by calling our dedicated customer service line.
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