4-Methylurazole
4-Methylurazole (CAS: 16312-79-1), with the empirical formula C3H5N3O2 and a molecular weight of 115.09 g/mol, is a heterocyclic compound. It serves as a valuable building block in chemical synthesis, particularly within the realm of triazole chemistry. This compound is recognised for its utility in constructing more complex molecular architectures for research and development purposes in various scientific disciplines.
- IUPAC
- 4-Methyl-1,2,4-triazolidine-3,5-dione

Chemical Synthesis Intermediate
4-Methylurazole functions as a key intermediate in the synthesis of diverse organic compounds. Its heterocyclic structure makes it suitable for derivatisation and incorporation into larger molecules.
Research and Development
This compound is utilised in laboratory settings for exploratory chemical research, contributing to the development of novel materials and chemical entities.
Heterocyclic Chemistry
As a triazole derivative, 4-Methylurazole is of interest in heterocyclic chemistry for studying structure-activity relationships and creating specialised chemical libraries.
| Molecular weight | 115.09 |
|---|---|
| Empirical formula | C3H5N3O2 |
| Assay | 98% |
| Melting point | 235-237 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 4-Methylurazole used for?
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4-Methylurazole is used as a building block in chemical synthesis, particularly within heterocyclic and triazole chemistry for research and development purposes.
What is the CAS number and formula for 4-Methylurazole?
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The CAS number for 4-Methylurazole is 16312-79-1, and its empirical formula is C3H5N3O2.
What grade and purity does Tech Serve Solutions supply for 4-Methylurazole?
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Tech Serve Solutions supplies 4-Methylurazole with an assay of 98%. This is a technical/research grade material, and TSS does not represent it as USP, BP, or EP grade.
How should 4-Methylurazole be handled safely?
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Safe handling of 4-Methylurazole requires the use of eyeshields and gloves, along with a type N95 (US) or type P1 (EN143) respirator filter, due to potential respiratory irritation.
Is 4-Methylurazole a hazardous substance?
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According to GHS classifications, 4-Methylurazole is designated with a WGK Germany rating of 3, indicating it is hazardous to water.
How is 4-Methylurazole packed and shipped?
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4-Methylurazole is carefully packed and exported by Tech Serve Solutions to meet global shipping standards for chemicals. Specific packaging details are available upon request.
How can I request a sample or quote for 4-Methylurazole?
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To request a sample or quote for 4-Methylurazole, please contact our sales department through the website or by phone.
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