Description

2-Cyclopentene-1-Carbonyl Chloride, 1,3-Dimethyl- (9Ci) is a specialized organic intermediate featuring a reactive acid chloride group on a substituted cyclopentene ring. This compound is valued for its role as a key building block in advanced organic synthesis, enabling the efficient introduction of the 1,3-dimethylcyclopentenylcarbonyl moiety. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical and agrochemical industries for constructing complex molecular architectures, such as active pharmaceutical ingredients (APIs) and novel bioactive compounds.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of proprietary drug candidates and active pharmaceutical ingredients (APIs), particularly those requiring a functionalized cyclopentene scaffold.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides, where its structure contributes to biological activity.
• Advanced Material Chemistry: Serves as a monomer or cross-linking agent in the development of specialty polymers and functional materials with tailored properties.
• Organic Synthesis & Research: A versatile reagent for academic and industrial research, facilitating Friedel-Crafts acylation, amide coupling, and esterification reactions to create novel chemical entities.
• Flavor & Fragrance Industry: Potential use in the synthesis of complex terpenoid-like aroma compounds and musk analogs.

Basic Information

Product Name	2-Cyclopentene-1-Carbonyl Chloride, 1,3-Dimethyl- (9Ci)
CAS No.	84884-05-9
Molecular Formula	C8H11ClO
Molecular Weight	158.62 g/mol
Synonyms	1,3-Dimethyl-2-cyclopentene-1-carbonyl chloride; 1,3-Dimethylcyclopent-2-ene-1-carbonyl chloride; 1-Carboxy-1,3-dimethyl-2-cyclopentene chloride; 1,3-Dimethyl-2-cyclopentenecarboxylic acid chloride; 1,3-Dimethylcyclopent-2-enecarbonyl chloride; 1,3-Dimethyl-1-chlorocarbonyl-2-cyclopentene
EINECS	Contact for details

Quality Control

Our production of 2-Cyclopentene-1-Carbonyl Chloride, 1,3-Dimethyl- (9Ci) adheres to stringent internal quality standards to ensure batch-to-batch consistency and reliability for your synthetic processes. Each lot is analyzed using advanced techniques including GC, HPLC, and NMR to verify identity, purity, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases, alcohols, and amines. Due to its nature as a strong acid/organic solvent, it should be handled in a fume hood. Recommended storage temperature is 2-8°C for long-term stability to minimize decomposition.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 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.