Description

2-Cyclopentene-1-Carbonyl Chloride, 1,2-Dimethyl- (9Ci) is a specialized organic acid chloride derivative of a dimethyl-substituted cyclopentene. This compound serves as a versatile and reactive building block for synthesizing more complex molecules, particularly in fine chemical and pharmaceutical research. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced material sectors for creating novel active ingredients and functional intermediates.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs), particularly those with complex cyclic structures.
• Agrochemical Synthesis: Used in the research and development of new pesticides, herbicides, and fungicides, leveraging its reactive carbonyl chloride group.
• Polymer & Material Science: Acts as a monomer or cross-linking agent in the production of specialty polymers, resins, and advanced materials with tailored properties.
• Organic Synthesis Reagent: Employed in academic and industrial laboratories for Friedel-Crafts acylation, amide bond formation, and esterification reactions to introduce the dimethylcyclopentenyl carbonyl moiety.
• Ligand & Catalyst Development: Serves as a precursor for creating specialized ligands used in asymmetric catalysis and metal-organic frameworks (MOFs).
• Flavor & Fragrance Industry: Potential intermediate for synthesizing complex aroma chemicals and fragrance ingredients with unique olfactory profiles.

Basic Information

Product Name	2-Cyclopentene-1-Carbonyl Chloride, 1,2-Dimethyl- (9Ci)
CAS No.	84884-02-6
Molecular Formula	C8H11ClO
Molecular Weight	158.62 g/mol
Synonyms	1,2-Dimethyl-2-cyclopentene-1-carbonyl chloride; 1,2-Dimethylcyclopent-2-ene-1-carbonyl chloride; 1-Carboxy-1,2-dimethyl-2-cyclopentene chloride; 1,2-Dimethyl-1-(chlorocarbonyl)cyclopent-2-ene; 2-Cyclopentene-1-carbonyl chloride, 1,2-dimethyl-
EINECS	Contact for details

Quality Control

Our 2-Cyclopentene-1-Carbonyl Chloride, 1,2-Dimethyl- (9Ci) is produced and handled under strict quality management protocols. Every batch undergoes rigorous analytical testing including assay, purity profiling, and identification to ensure consistency and reliability for your synthetic workflows. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to guarantee traceability and compliance with your internal quality standards.

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, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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