3,5-Dimethyl-4-nitroisoxazole
3,5-Dimethyl-4-nitroisoxazole (CAS: 1123-49-5) is a heterocyclic organic compound with the molecular formula C5H6N2O3 and a molecular weight of 142.11 g/mol. This compound serves as a valuable building block in organic synthesis, particularly within the realm of heterocyclic chemistry. It is characterised by its isoxazole ring system functionalised with methyl and nitro groups, enabling diverse chemical transformations.
- Synonyms
- C5H6N2O3

Organic Synthesis Intermediate
3,5-Dimethyl-4-nitroisoxazole is employed as a key intermediate in the synthesis of more complex organic molecules. Its functional groups allow for various reactions, making it useful in research and development settings for creating novel compounds.
Heterocyclic Chemistry Research
This isoxazole derivative is utilised in academic and industrial research focused on heterocyclic compounds. Its structure provides a platform for exploring new reaction pathways and developing novel synthetic methodologies.
Building Block for Fine Chemicals
The compound functions as a versatile building block in the preparation of fine chemicals and specialty materials. Its specific substitution pattern on the isoxazole ring offers unique synthetic possibilities.
| Molecular weight | 142.11 |
|---|---|
| Empirical formula | C5H6N2O3 |
| Assay | 98% |
| Melting point | 67-69 °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) | 26-37/39 |
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 3,5-Dimethyl-4-nitroisoxazole used for?
+
3,5-Dimethyl-4-nitroisoxazole is primarily used as a building block and intermediate in organic synthesis, particularly within heterocyclic chemistry research and the development of fine chemicals.
What is the CAS number and formula for 3,5-Dimethyl-4-nitroisoxazole?
+
The CAS number is 1123-49-5 and the empirical formula (Hill notation) is C5H6N2O3.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 3,5-Dimethyl-4-nitroisoxazole with an assay of 98%. We do not represent this product as USP, BP, or EP grade.
What are the safety and handling precautions for 3,5-Dimethyl-4-nitroisoxazole?
+
This compound is a Warning substance (GHS07) and may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Recommended PPE includes a dust mask type N95 (US), eyeshields, and gloves. Handle in a well-ventilated area and avoid dust formation. Always consult the Safety Data Sheet (SDS) before use.
How is 3,5-Dimethyl-4-nitroisoxazole packed, shipped, and exported?
+
Tech Serve Solutions packs and ships chemicals in compliance with international regulations for safe transport. We are a global supplier and exporter, catering to diverse logistical requirements.
How can I request a sample or quote for 3,5-Dimethyl-4-nitroisoxazole?
+
To request a sample or a quotation for 3,5-Dimethyl-4-nitroisoxazole, please use the 'Request a Quote' or 'Contact Us' form on our website, providing your specific requirements.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis