Description

1,2,3-Trimethyl-1H-Pyrazole-5(2H)-One is a versatile heterocyclic building block and key synthetic intermediate. This compound matters for its role in constructing more complex molecular architectures, particularly in advanced organic synthesis. Industries that need it include pharmaceutical R&D for active ingredient synthesis, agrochemical manufacturing for novel crop protection agents, and fine chemical production for dyes and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those with pyrazole-based core structures.
• Agrochemical Synthesis: Used in the research and production of novel herbicides, fungicides, and insecticides.
• Fine Chemical Building Block: Serves as a versatile scaffold for synthesizing dyes, pigments, and other specialty organic compounds.
• Ligand and Catalyst Development: Employed in the preparation of nitrogen-containing ligands for coordination chemistry and catalytic applications.
• Material Science Research: Investigated as a monomer or additive in the development of polymers with specific thermal or optical properties.
• Academic & Industrial R&D: A valuable reagent for method development and exploring new chemical reactions in laboratory settings.

Basic Information

Product Name	1,2,3-Trimethyl-1H-Pyrazole-5(2H)-One
CAS No.	3201-26-1
Molecular Formula	C6H10N2O
Molecular Weight	126.16 g/mol
Synonyms	1,2,3-Trimethyl-5-pyrazolone; 1,2,3-Trimethyl-1H-pyrazol-5-ol; 1,2,3-Trimethyl-5-hydroxypyrazole; 1,2,3-Trimethylpyrazol-5-one; 5-Hydroxy-1,2,3-trimethylpyrazole; 1,2,3-Trimethyl-δ²-pyrazolin-5-one; 1,2,3-Trimethylpyrazolone; 3,4,5-Trimethylpyrazolone
EINECS	221-727-8

Quality Control

Our 1,2,3-Trimethyl-1H-Pyrazole-5(2H)-One is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing specifications such as assay (by HPLC), residual solvents, and related substances is provided with every shipment to guarantee compliance with your project requirements.

Storage

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

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%
Related Substances (HPLC)	Contact for details

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