Description

2-Cyclohexene-1-Carbonyl Chloride, 4-(1-Methylethylidene)-, (S)- (9Ci) is a high-purity, chiral organic intermediate of significant value in advanced synthetic chemistry. Its core value proposition lies in its role as a versatile building block for constructing complex, stereochemically defined molecules, enabling the development of novel compounds with targeted biological or material properties. This product is essential for research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries who require precise, enantiomerically pure intermediates for API synthesis, ligand development, and the creation of functional materials.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the synthesis of enantiomerically pure Active Pharmaceutical Ingredients (APIs), particularly for central nervous system (CNS) and anti-inflammatory drug candidates.
• Agrochemical Synthesis: Used in the research and development of novel, stereoselective pesticides and herbicides where specific chirality is critical for biological activity and environmental safety.
• Ligand and Catalyst Development: Serves as a precursor for creating chiral ligands and organocatalysts used in asymmetric synthesis to control stereochemistry in chemical reactions.
• Specialty Polymer Monomer: Employed in the synthesis of functionalized polymers with specific optical or mechanical properties for advanced material science applications.
• Chemical Research & Development: A valuable tool in academic and industrial R&D for exploring new synthetic pathways and constructing complex molecular architectures.
• Fine Chemical Production: Integral to the multi-step synthesis of high-value fine chemicals and flavors & fragrances requiring specific stereochemical configurations.

Basic Information

Item	Details
Product Name	2-Cyclohexene-1-Carbonyl Chloride, 4-(1-Methylethylidene)-, (S)- (9Ci)
CAS No.	183252-91-7
Molecular Formula	C10H13ClO
Molecular Weight	184.66 g/mol
Synonyms	(S)-4-Isopropylidene-2-cyclohexene-1-carbonyl chloride; (S)-4-(Prop-1-en-2-yl)cyclohex-1-ene-1-carbonyl chloride; (S)-p-Menth-1-ene-8-carbonyl chloride (related terpene derivative); (1S)-4-(1-Methylethylidene)-2-cyclohexene-1-carbonyl chloride; (S)-4-Isopropylidene-1-cyclohexene-1-carbonyl chloride; Chiral Cyclohexenoyl Chloride Intermediate; (S)-enantiomer of 4-Isopropylidene-2-cyclohexenecarbonyl chloride
EINECS	Contact for details

Quality Control

Our 2-Cyclohexene-1-Carbonyl Chloride, 4-(1-Methylethylidene)-, (S)- (9Ci) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including chiral purity analysis (HPLC/GC), identity confirmation (IR, NMR), and assay determination to ensure compliance with exacting customer specifications. Certificates of Analysis (COA) detailing all test results are provided with each shipment. We adhere to cGMP principles where applicable to support our clients in regulated industry segments.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and reacts with strong acids/organic solvents; therefore, it must be kept under an inert atmosphere (e.g., nitrogen or argon) and away from incompatible materials. Keep the container tightly sealed when not in use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 97.0%
Chiral Purity (Enantiomeric Excess)	≥ 98.0% ee
Water Content (KF)	≤ 0.5%

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