Description

1-Pyrazolidinecarbonyl Chloride, 4-Methyl-3-Oxo- (9Ci) is a specialized heterocyclic acid chloride derivative. This compound serves as a critical building block in advanced organic synthesis, enabling the efficient introduction of the pyrazolidinecarbonyl moiety. It is primarily sought after by research and development chemists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and complex intermediates.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and metabolic diseases.
• Agrochemical Synthesis: Used in the research and development of new herbicides and fungicides, leveraging its heterocyclic structure for biological activity.
• Peptidomimetic Chemistry: Acts as a versatile reagent for constructing peptide analogs and enzyme inhibitors in medicinal chemistry programs.
• Material Science Research: Employed in the development of specialty polymers and functional organic materials requiring specific heterocyclic frameworks.
• Chemical Biology Probes: Utilized to create labeled compounds and molecular probes for studying biochemical pathways and protein interactions.

Basic Information

Product Name	1-Pyrazolidinecarbonyl Chloride, 4-Methyl-3-Oxo- (9Ci)
CAS No.	54944-90-0
Molecular Formula	C5H7ClN2O2
Molecular Weight	162.57 g/mol
Synonyms	4-Methyl-3-oxo-1-pyrazolidinecarbonyl chloride; 1-(Chlorocarbonyl)-4-methyl-3-pyrazolidinone; 4-Methyl-3-oxopyrazolidine-1-carbonyl chloride; 3-Oxo-4-methylpyrazolidine-1-carbonyl chloride; 1-Pyrazolidinecarbonyl chloride, 4-methyl-3-oxo-; 4-Methyl-3-oxo-1-pyrazolidine carboxylic acid chloride
EINECS	Contact for details

Quality Control

Our 1-Pyrazolidinecarbonyl Chloride, 4-Methyl-3-Oxo- (9Ci) is manufactured under strict quality protocols to ensure batch-to-batch consistency and high purity suitable for research and development applications. Each lot undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening. Keep away from strong acids and incompatible organic solvents.

Specification

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