Description

1,5-Dimethyl-1H-Pyrazole-3-Carbonyl Chloride is a versatile and highly reactive acyl chloride derivative, primarily used as a key building block in advanced organic synthesis. Its core value proposition lies in enabling the efficient introduction of the 1,5-dimethylpyrazole-3-carbonyl moiety, a valuable scaffold in medicinal chemistry and materials science. This intermediate is critically needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing novel active compounds.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of active pharmaceutical ingredients (APIs), particularly those containing heterocyclic amide or ester functionalities.
• Agrochemical Synthesis: Used in the research and production of novel herbicides, fungicides, and insecticides where the pyrazole core imparts specific biological activity.
• Ligand and Catalyst Development: Serves as a precursor for creating specialized ligands used in coordination chemistry and catalytic processes.
• Polymer and Materials Science: Employed to incorporate functional pyrazole units into polymers, dyes, or advanced organic materials to modify their properties.
• Custom Synthesis and Contract Manufacturing: A valuable reagent for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving diverse client projects.
• Research & Development: Essential for academic and industrial R&D labs exploring new chemical entities and reaction pathways in heterocyclic chemistry.

Basic Information

Item	Details
Product Name	1,5-Dimethyl-1H-Pyrazole-3-Carbonyl Chloride
CAS No.	49783-84-8
Molecular Formula	C7H9ClN2O
Molecular Weight	172.61 g/mol
Synonyms	1,5-Dimethyl-1H-pyrazole-3-carbonyl chloride; 1,5-Dimethylpyrazole-3-carbonyl chloride; 3-Carboxy-1,5-dimethylpyrazole chloride; 1,5-Dimethyl-3-pyrazolecarbonyl chloride; 1,5-Dimethyl-1H-pyrazole-3-carboxylic acid chloride; 49783-84-8; 1,5-Dimethylpyrazole-3-carboxylic acid chloride
EINECS	Contact for details

Quality Control

Our 1,5-Dimethyl-1H-Pyrazole-3-Carbonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for advanced synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at controlled room temperature (15-25°C). 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 to prevent decomposition. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
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.