Description

1H-Pyrazole-5-Carbonyl Chloride, 1,3-Diethyl- (9Ci) is a specialized organic intermediate featuring a reactive carbonyl chloride group on a diethyl-substituted pyrazole core. This compound matters as a critical building block for synthesizing more complex heterocyclic molecules, enabling the introduction of the pyrazole pharmacophore into target structures. It is primarily needed by research chemists and process development scientists in the pharmaceutical and agrochemical industries for creating novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key synthon for the development of novel drug candidates, particularly in medicinal chemistry programs targeting various therapeutic areas.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and fungicides where the pyrazole moiety is a key active component.
• Ligand and Catalyst Preparation: Serves as a precursor for creating specialized ligands used in coordination chemistry and catalytic processes.
• Material Science Research: Employed in the synthesis of organic functional materials, including polymers and molecular sensors.
• Custom Synthesis and Contract Manufacturing: A valuable starting material for custom chemical synthesis services catering to R&D and pilot-scale production.

Basic Information

Product Name	1H-Pyrazole-5-Carbonyl Chloride, 1,3-Diethyl- (9Ci)
CAS No.	126674-97-3
Molecular Formula	C8H11ClN2O
Molecular Weight	186.64 g/mol
Synonyms	1,3-Diethyl-1H-pyrazole-5-carbonyl chloride; 1,3-Diethylpyrazole-5-carbonyl chloride; 5-(Chlorocarbonyl)-1,3-diethyl-1H-pyrazole; 1H-Pyrazole-5-carbonyl chloride, 1,3-diethyl-; Diethylpyrazolecarbonyl chloride
EINECS	Contact for details

Quality Control

Our 1H-Pyrazole-5-Carbonyl Chloride, 1,3-Diethyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the exacting standards required for research and process chemistry. Certificates of Analysis (COA) with detailed chromatographic and spectroscopic data are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic and moisture-sensitive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening. Recommended storage temperature is 2-8°C for long-term stability. Keep away from strong acids and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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