Description

1H-Pyrazole-4-Carbonyl Chloride, 1,3,5-Trimethyl- (9Ci) is a versatile and highly reactive organic intermediate, specifically a functionalized pyrazole derivative with an acid chloride group. This compound is critical for the efficient synthesis of amides and esters, enabling the rapid construction of complex molecular architectures. It is primarily sought after 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 building block for the synthesis of novel drug candidates, particularly in medicinal chemistry programs targeting various therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new pesticides, herbicides, and fungicides, leveraging the pyrazole core's bioactivity.
• Ligand and Catalyst Development: Serves as a precursor for creating specialized ligands used in transition metal catalysis and organometallic chemistry.
• Material Science Research: Employed in the synthesis of functional polymers and advanced organic materials with specific electronic or structural properties.
• Custom Synthesis and Contract Manufacturing: A valuable reagent for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving the life sciences sector.

Basic Information

Product Name	1H-Pyrazole-4-Carbonyl Chloride, 1,3,5-Trimethyl- (9Ci)
CAS No.	98298-63-6
Molecular Formula	C7H9ClN2O
Molecular Weight	172.61 g/mol
Synonyms	1,3,5-Trimethyl-1H-pyrazole-4-carbonyl chloride; 1,3,5-Trimethylpyrazole-4-carbonyl chloride; 4-(Chlorocarbonyl)-1,3,5-trimethyl-1H-pyrazole; 1,3,5-Trimethyl-1H-pyrazole-4-carboxylic acid chloride; 1,3,5-Trimethylpyrazole-4-carboxylic acid chloride; 98298-63-6 (CAS); Trimethylpyrazole carbonyl chloride
EINECS	Contact for details

Quality Control

Our 1H-Pyrazole-4-Carbonyl Chloride, 1,3,5-Trimethyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high purity and consistent performance. Certificates of Analysis (COA) with detailed specifications are provided for every shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature and reactivity as an acid chloride, 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 moisture.

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.