Description

5-Chloro-1-Ethyl-1H-Pyrazole is a versatile heterocyclic building block of significant interest in advanced organic synthesis. Its core value lies in its functionalized pyrazole ring, which serves as a critical scaffold for constructing complex molecules with tailored properties. This intermediate is essential for research chemists and process development scientists in the pharmaceutical and agrochemical industries, where it is used to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, inflammation, and metabolic diseases.
• Agrochemical Synthesis: Used in the development of next-generation herbicides, fungicides, and insecticides, leveraging its halogenated pyrazole structure.
• Ligand and Catalyst Development: Serves as a foundational unit for creating specialized ligands in coordination chemistry and catalysis.
• Material Science Research: Employed in the synthesis of organic electronic materials, such as charge-transport layers or photoactive compounds.
• Chemical Biology Probes: Utilized as a building block for creating molecular probes to study enzyme function and biological pathways.
• Custom Synthesis and Contract Manufacturing: A critical starting material for custom synthesis projects requiring specific, functionalized heterocycles.

Basic Information

Product Name	5-Chloro-1-Ethyl-1H-Pyrazole
CAS No.	1427020-01-6
Molecular Formula	C5H7ClN2
Molecular Weight	130.57 g/mol
Synonyms	1-Ethyl-5-chloro-1H-pyrazole; 5-Chloro-1-ethylpyrazole; 1H-Pyrazole, 5-chloro-1-ethyl-; 1427020-01-6; 5-Chloro-1-ethyl-1H-pyrazole; 1-Ethyl-5-chloropyrazole
EINECS	Contact for details

Quality Control

Every batch of 5-Chloro-1-Ethyl-1H-Pyrazole is manufactured and tested under a strict quality management system. We ensure high purity and consistency through advanced analytical techniques including HPLC, GC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee it meets your specific research or production requirements.

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). Keep away from strong acids and incompatible organic solvents. For long-term storage, consider under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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