5-Amino-3-phenylisoxazole
5-Amino-3-phenylisoxazole (CAS 4369-55-5; C9H8N2O) is a heterocyclic organic compound with a molecular weight of 160.17 g/mol. It serves as a valuable building block in chemical synthesis, particularly for the construction of more complex molecules. Its isoxazole core and amino substituent make it a useful intermediate in the development of novel compounds within research and development settings.

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of various organic compounds. Its reactive amino group and isoxazole ring system allow for diverse chemical transformations.
Pharmaceutical Research
A potential building block for the development of new pharmaceutical agents. Its structural features can be incorporated into drug discovery programmes.
Heterocyclic Chemistry
Employed in the study and synthesis of novel heterocyclic compounds. The isoxazole scaffold is a common motif in medicinal chemistry.
| Molecular weight | 160.17 |
|---|---|
| Empirical formula | C9H8N2O |
| Assay | 97% |
| Melting point | 110-114 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, 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 5-Amino-3-phenylisoxazole primarily used for?
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5-Amino-3-phenylisoxazole is primarily used as a building block and intermediate in organic synthesis, particularly in the fields of pharmaceutical research and heterocyclic chemistry.
What are the CAS number and molecular formula for 5-Amino-3-phenylisoxazole?
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The CAS number is 4369-55-5, and the molecular formula is C9H8N2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Amino-3-phenylisoxazole with a minimum assay of 97%. We do not represent this product as USP, BP, or EP grade.
What are the safety considerations when handling 5-Amino-3-phenylisoxazole?
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5-Amino-3-phenylisoxazole is classified with GHS07 symbol and has a 'Warning' signal word. It carries the hazard statement H302 (Harmful if swallowed). Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, faceshields, and gloves.
Is 5-Amino-3-phenylisoxazole a controlled substance?
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The provided data does not indicate that 5-Amino-3-phenylisoxazole is a controlled substance.
How is 5-Amino-3-phenylisoxazole packed, shipped, and exported?
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Tech Serve Solutions, as a specialist global supplier and exporter, ensures appropriate packaging for safe transport and adheres to all necessary regulations for international shipping.
How can I request a sample or quote for 5-Amino-3-phenylisoxazole?
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Please contact our sales department via the website or direct email to request a sample or a detailed quotation.
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