Description

4-Ethyl-5-Methyl-2H-1,2,4-Triazol-3(4H)-One is a versatile heterocyclic compound belonging to the 1,2,4-triazolone class, serving as a critical synthetic intermediate and functional building block. Its value lies in its unique fused ring structure, which provides a stable scaffold for introducing specific chemical functionality in advanced synthesis. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel active ingredients and performance materials.

Application

• As a key pharmaceutical intermediate in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders.
• Utilized in agrochemical research and development for creating new herbicides, fungicides, and plant growth regulators.
• Serves as a versatile building block in organic synthesis for constructing complex heterocyclic frameworks and functional molecules.
• Potential application in the development of coordination chemistry ligands and metal-organic frameworks (MOFs) due to its nitrogen-rich structure.
• Used in material science for synthesizing polymers and advanced materials with specific thermal or electronic properties.
• Acts as a precursor or modifier in the synthesis of dyes, pigments, and photographic chemicals.

Basic Information

Product Name	4-Ethyl-5-Methyl-2H-1,2,4-Triazol-3(4H)-One
CAS No.	58910-25-1
Molecular Formula	C5H9N3O
Molecular Weight	127.15 g/mol
Synonyms	4-Ethyl-5-methyl-1,2,4-triazol-3(2H)-one; 4-Ethyl-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one; 5-Methyl-4-ethyl-1,2,4-triazol-3-one; 3H-1,2,4-Triazol-3-one, 4-ethyl-5-methyl-2,4-dihydro-; 4-Ethyl-5-methyl-δ²-1,2,4-triazolin-3-one; EMTO; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our production of 4-Ethyl-5-Methyl-2H-1,2,4-Triazol-3(4H)-One adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. All materials undergo rigorous analytical testing, including HPLC, GC, and NMR, to verify identity and quantify impurities. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and specific impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents. For long-term storage, consider an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.