Description

Cyclopentanecarbonyl Chloride, 1-Methoxy- (9Ci) is a specialized organic intermediate featuring a functionalized cyclopentane ring. This compound matters for its role as a key building block in the synthesis of complex molecules, offering a reactive acid chloride group and a methoxy substituent for precise chemical modifications. It is primarily needed by research and development chemists in the pharmaceutical and agrochemical industries for creating novel active ingredients and fine chemicals. Its unique structure makes it valuable for constructing constrained ring systems and introducing specific functional handles.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those requiring a functionalized cyclopentane scaffold.
• Agrochemical Synthesis: Used in the research and development of advanced pesticides and herbicides, where its structure can contribute to specific biological activity.
• Fine Chemical Production: Serves as a versatile building block for creating complex, high-value specialty chemicals and flavors/fragrances.
• Material Science Research: Employed in the development of novel polymers and advanced materials with tailored properties.
• Academic & Contract Research: A valuable reagent for methodological studies and synthetic chemistry research in university and CRO laboratories.

Basic Information

Product Name	Cyclopentanecarbonyl Chloride, 1-Methoxy- (9Ci)
CAS No.	73555-14-3
Molecular Formula	C7H11ClO2
Molecular Weight	162.62 g/mol
Synonyms	1-Methoxycyclopentanecarbonyl chloride; 1-Methoxycyclopentanecarboxylic acid chloride; Methoxycyclopentanecarbonyl chloride; Cyclopentanecarboxylic acid, 1-methoxy-, chloride; 1-Methoxy-1-cyclopentanecarbonyl chloride
EINECS	Contact for details

Quality Control

Our Cyclopentanecarbonyl Chloride, 1-Methoxy- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatography (GC/HPLC) and spectroscopic methods (NMR, IR), to ensure identity, purity, and consistency. Certificates of Analysis (COA) with detailed batch-specific results are provided to guarantee it meets the stringent requirements for research and process development applications.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 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.