5-Amino-3,4-dimethylisoxazole
5-Amino-3,4-dimethylisoxazole (CAS 19947-75-2) is a heterocyclic organic compound with the molecular formula C5H8N2O and a molecular weight of 112.13 g/mol. Available at 97% purity, this isoxazole derivative serves as a valuable building block in chemical synthesis. Its structure lends itself to applications in the development of novel heterocyclic compounds and pharmaceutical intermediates. TSS provides this chemical for research and development purposes.
- Synonyms
- C5H8N2O

Heterocyclic Synthesis
Utilised as a key intermediate in the construction of more complex heterocyclic ring systems. Its amino and isoxazole functionalities offer versatile reaction sites for organic chemists.
Pharmaceutical Intermediates
Serves as a precursor in the synthesis of active pharmaceutical ingredients (APIs). The isoxazole core is present in various therapeutic agents.
Research and Development
A valuable reagent for academic and industrial laboratories exploring new chemical entities and synthetic methodologies. Supports the discovery of novel compounds with potential biological activity.
| Molecular weight | 112.13 |
|---|---|
| Empirical formula | C5H8N2O |
| Assay | 97% |
| Melting point | 118-122 °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 5-Amino-3,4-dimethylisoxazole used for?
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5-Amino-3,4-dimethylisoxazole is primarily used as a building block in chemical synthesis, particularly for constructing heterocyclic compounds and pharmaceutical intermediates in research and development settings.
What is the CAS number and formula for 5-Amino-3,4-dimethylisoxazole?
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The CAS number is 19947-75-2, and the empirical formula is C5H8N2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Amino-3,4-dimethylisoxazole with an assay of 97%. TSS does not represent this product as USP, BP, EP, or any pharmacopoeia grade.
How should 5-Amino-3,4-dimethylisoxazole be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. Refer to the Safety Data Sheet for full details. It is classified as Warning with H315, H319, and H335 hazard statements.
Is 5-Amino-3,4-dimethylisoxazole a controlled substance?
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Based on the provided data, there is no indication that 5-Amino-3,4-dimethylisoxazole (CAS 19947-75-2) is a controlled substance.
How is 5-Amino-3,4-dimethylisoxazole packed and shipped?
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This chemical is typically packed according to industry standards for safe transport and is exported globally by TSS.
How can I request a quote or sample?
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Please contact the Tech Serve Solutions sales team via our website or direct contact details to request a quote or sample of 5-Amino-3,4-dimethylisoxazole.
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