Description

Cyclopentanecarbonyl Chloride, 3-Chloro-3-Methyl- (9Ci) is a specialized chlorinated carbonyl chloride derivative of cyclopentane. This compound serves as a versatile and reactive high-purity chemical intermediate, crucial for introducing functionalized cyclopentyl moieties into target molecules. It is primarily needed by pharmaceutical R&D and agrochemical synthesis teams for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for candidates containing functionalized cyclopentane rings.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators.
• Organic Synthesis Reagent: Acts as an acylating agent in Friedel-Crafts and other condensation reactions to form ketones, amides, and esters.
• Material Science Research: Employed in the development of specialty polymers, liquid crystals, and organic electronic materials.
• Chemical Derivatization: Useful for analytical chemistry applications where derivatization of compounds is required for detection or separation.

Basic Information

Product Name	Cyclopentanecarbonyl Chloride, 3-Chloro-3-Methyl- (9Ci)
CAS No.	74819-87-7
Molecular Formula	C7H10Cl2O
Molecular Weight	181.06 g/mol
Synonyms	3-Chloro-3-methylcyclopentanecarbonyl chloride; 3-Chloro-3-methylcyclopentane-1-carbonyl chloride; 1-(Chlorocarbonyl)-3-chloro-3-methylcyclopentane; 3-Methyl-3-chlorocyclopentanecarbonyl chloride; Cyclopentanecarbonyl chloride, 3-chloro-3-methyl-
EINECS	Contact for details

Quality Control

Our production of Cyclopentanecarbonyl Chloride, 3-Chloro-3-Methyl- (9Ci) adheres to stringent internal quality standards to ensure batch-to-batch consistency and reliability for synthetic applications. Each lot undergoes comprehensive analytical testing, including assay and impurity profiling by GC/HPLC. A Certificate of Analysis (COA) detailing purity, identity, and specific test results is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature and reactivity as a strong acid/organic solvent, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (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.