Description

4,5-Dihydro-3-Methyl-3H-Pyrazole is a versatile heterocyclic organic compound that serves as a critical building block in advanced chemical synthesis. Its unique pyrazoline structure makes it a valuable intermediate for creating complex molecules with specific biological and chemical properties. This product is essential for research and development chemists in the pharmaceutical, agrochemical, and material science industries, where it is used to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of various drug candidates, particularly those targeting central nervous system disorders and inflammation.
• Agrochemical Synthesis: Used in the development of novel pesticides, herbicides, and plant growth regulators.
• Organic Light-Emitting Diode (OLED) Materials: Acts as a building block for electron-transporting or host materials in display and lighting technologies.
• Coordination Chemistry & Ligand Synthesis: Employed to create chelating ligands for catalysts and metal-organic frameworks (MOFs).
• Polymer Modification: Incorporated into polymer chains to impart specific thermal or mechanical properties.
• Research & Development: Serves as a standard or starting material in academic and industrial R&D for exploring new chemical reactions and pathways.

Basic Information

Product Name	4,5-Dihydro-3-Methyl-3H-Pyrazole
CAS No.	2721-25-7
Molecular Formula	C4H8N2
Molecular Weight	84.12 g/mol
Synonyms	3-Methyl-2-pyrazoline; 3-Methyl-4,5-dihydro-1H-pyrazole; 3-Methyl-δ²-pyrazoline; 3-Methylpyrazolidine; 1H-Pyrazole, 4,5-dihydro-3-methyl-; 3-Methyl-1,2-diazacyclopent-2-ene
EINECS	220-327-6

Quality Control

Our 4,5-Dihydro-3-Methyl-3H-Pyrazole is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements of our global clientele. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to guarantee supply reliability and product traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

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%

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