Description

1-Cyclopentene-1-Carbonyl Chloride, 4,4-Dimethyl- (9Ci) is a specialized organic acid chloride building block featuring a functionalized cyclopentene ring. This compound matters as a high-value intermediate for synthesizing complex molecules, offering a reactive carbonyl chloride group for amide or ester formation. It is primarily needed by R&D chemists and process development teams in the pharmaceutical and agrochemical industries for creating novel active ingredients and advanced materials.

Application

• Key synthetic intermediate in pharmaceutical research for the development of new drug candidates.
• Building block for advanced agrochemicals, including herbicides and fungicides.
• Precursor in material science for synthesizing specialized polymers and functional monomers.
• Reagent in organic synthesis for introducing the 4,4-dimethylcyclopentenyl-carbonyl moiety into target molecules.
• Used in the preparation of chemical probes and ligands for biochemical and pharmacological studies.
• Intermediate for fine chemical and custom synthesis projects requiring structurally complex acid chlorides.

Basic Information

Product Name	1-Cyclopentene-1-Carbonyl Chloride, 4,4-Dimethyl- (9Ci)
CAS No.	78064-83-2
Molecular Formula	C8H11ClO
Molecular Weight	158.62 g/mol
Synonyms	4,4-Dimethyl-1-cyclopentene-1-carbonyl chloride; 4,4-Dimethylcyclopent-1-ene-1-carbonyl chloride; 4,4-Dimethyl-1-cyclopentenecarboxylic acid chloride; 1-Cyclopentenecarbonyl chloride, 4,4-dimethyl-; 4,4-Dimethylcyclopent-1-enecarboxylic acid chloride; 4,4-Dimethyl-1-cyclopentenylcarbonyl chloride
EINECS	Contact for details

Quality Control

Our 1-Cyclopentene-1-Carbonyl Chloride, 4,4-Dimethyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatographic purity assays and identity confirmation, to ensure it meets the high standards required for research and process chemistry. Certificates of Analysis (COA) with detailed specifications are provided for every shipment to guarantee traceability and batch-to-batch consistency.

Storage

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