5-Amino-4-bromo-3-methylisoxazole
5-Amino-4-bromo-3-methylisoxazole (CAS: 33084-49-0), with the molecular formula C4H5BrN2O and a molecular weight of 177.00, is a valuable halogenated heterocyclic building block. It serves as a key intermediate in organic synthesis, particularly for the construction of more complex molecules in pharmaceutical research and chemical development. This compound is supplied by Tech Serve Solutions with an assay of 97% and requires storage at 2-8°C to maintain its integrity.
- IUPAC
- 4-Bromo-3-methylisoxazol-5-amine

Organic Synthesis Intermediate
This isoxazole derivative functions as a crucial building block in multi-step organic synthesis. Its reactive sites allow for diverse chemical transformations, enabling the creation of novel molecular scaffolds.
Pharmaceutical Research
The compound is employed in the development of new pharmaceutical agents. Its structure can be incorporated into drug candidates targeting various therapeutic areas.
Chemical Development
It is utilized in the exploration of new chemical entities and synthetic methodologies within research and development laboratories.
| Molecular weight | 177.00 |
|---|---|
| Empirical formula | C4H5BrN2O |
| Assay | 97% |
| Storage temperature | 2-8°C |
| Melting point | 66-71 °C |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26 |
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-4-bromo-3-methylisoxazole used for?
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5-Amino-4-bromo-3-methylisoxazole is primarily used as a building block in organic synthesis, particularly in pharmaceutical research and chemical development for creating complex molecules.
What are the CAS number and formula for 5-Amino-4-bromo-3-methylisoxazole?
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The CAS number is 33084-49-0, and the empirical formula is C4H5BrN2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Amino-4-bromo-3-methylisoxazole with an assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 5-Amino-4-bromo-3-methylisoxazole be handled safely?
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Based on GHS information, this compound is harmful if swallowed (H302) and causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment, ensure good ventilation, and avoid breathing dust. Store at 2-8°C.
Is 5-Amino-4-bromo-3-methylisoxazole a controlled substance?
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The provided data does not indicate that 5-Amino-4-bromo-3-methylisoxazole is a controlled substance.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions packs and ships chemicals in compliance with international regulations for safe transport. As a global supplier and exporter, we handle all necessary documentation for export.
How can I request a sample or quote for 5-Amino-4-bromo-3-methylisoxazole?
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To request a sample or quote, please use the contact form on our website or call our sales department, referencing the product name and CAS number 33084-49-0.
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