Description

Cyclopentanecarbonyl Chloride, 2-(3-Butenyl)-, trans- (9Ci) is a specialized organic intermediate featuring a reactive acid chloride group and a terminal alkene functionality. This unique bifunctional structure makes it a valuable building block for the synthesis of complex molecules, particularly in pharmaceutical and advanced material research. It is primarily sought by R&D chemists and process development scientists working on novel active pharmaceutical ingredients (APIs), agrochemicals, and functional polymers.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of complex, stereochemically defined drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators.
• Polymer & Material Science: Serves as a monomer or cross-linking agent for creating specialty polymers with tailored properties.
• Organic Synthesis Reagent: Employed in academic and industrial laboratories for constructing cyclopentane-based natural product analogs and complex organic frameworks.
• Liquid Crystal & OLED Material Precursor: Potential intermediate in the synthesis of advanced electronic and photonic materials.
• Fragrance & Flavor Chemistry: Used in the development of novel synthetic aroma chemicals.

Basic Information

Product Name	Cyclopentanecarbonyl Chloride, 2-(3-Butenyl)-, trans- (9Ci)
CAS No.	118717-70-7
Molecular Formula	C10H15ClO
Molecular Weight	186.68 g/mol
Synonyms	trans-2-(3-Butenyl)cyclopentanecarbonyl chloride; (1R,2S)-rel-2-(3-Buten-1-yl)cyclopentanecarbonyl chloride; 2-(3-Butenyl)cyclopentanecarbonyl chloride, trans-; Cyclopentanecarbonyl chloride, 2-(3-butenyl)-, (1R,2S)-rel-; 118717-70-7; (1R,2S)-2-(but-3-en-1-yl)cyclopentane-1-carbonyl chloride
EINECS	Contact for details

Quality Control

Our production of Cyclopentanecarbonyl Chloride, 2-(3-Butenyl)-, trans- (9Ci) adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity for research and development applications. Each lot is characterized by advanced analytical techniques including GC, HPLC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profile is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis of the acid chloride moiety. Keep away from strong bases, oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 0.5%
Specific Rotation (Optical Purity)	Contact for details

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