Description

Cyclohexane, 2-Ethynyl-4-Methyl-1-(1-Methylethyl)-, (1S,2R,4R)- (9Ci) is a high-purity, stereochemically defined organic building block of significant interest in advanced chemical synthesis. This compound is valued for its unique molecular architecture, featuring both an ethynyl group and a chiral, substituted cyclohexane core, which makes it a versatile precursor for constructing complex molecules. It is primarily sought by research and development teams in the pharmaceutical and fine chemical industries for applications in medicinal chemistry, asymmetric synthesis, and the development of novel materials.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the research and development of new active pharmaceutical ingredients (APIs), particularly in projects requiring stereochemical control.
• Asymmetric Catalyst Ligand Precursor: Used in the synthesis of sophisticated ligand systems for transition metal catalysis.
• Fine Chemical Synthesis: Serves as a specialized building block for creating complex natural product analogs and other high-value organic compounds.
• Material Science Research: Investigated as a monomer or cross-linking agent in the development of advanced polymers with specific structural properties.
• Agrochemical Research: Employed in the discovery and synthesis of novel crop protection agents with enhanced efficacy.
• Academic & Industrial R&D: A valuable tool for methodological studies in organic synthesis and chemical biology.

Basic Information

Item	Detail
Product Name	Cyclohexane, 2-Ethynyl-4-Methyl-1-(1-Methylethyl)-, (1S,2R,4R)- (9Ci)
CAS No.	178243-92-0
Molecular Formula	C12H18
Molecular Weight	162.27 g/mol
Synonyms	(1S,2R,4R)-2-Ethynyl-4-Methyl-1-(1-Methylethyl)cyclohexane; (1S,2R,4R)-2-Ethynyl-1-Isopropyl-4-methylcyclohexane; (-)-2-Ethynyl-4-Methyl-1-(1-Methylethyl)cyclohexane, (1S,2R,4R)-; 2-Ethynyl-4-methyl-1-(propan-2-yl)cyclohexane (stereospecific); Chiral Ethynyl Cyclohexane Derivative; Contact for details on additional trade names or abbreviations.
EINECS	Contact for details

Quality Control

Our Cyclohexane, 2-Ethynyl-4-Methyl-1-(1-Methylethyl)-, (1S,2R,4R)- (9Ci) is produced and handled under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chiral purity analysis (HPLC/GC), to ensure high chemical and stereochemical purity suitable for demanding R&D applications. Certificates of Analysis (COA) with detailed chromatographic data are provided to guarantee traceability and batch-to-batch consistency.

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). Keep away from heat, sparks, and open flames. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee (1S,2R,4R)
Water Content (KF)	≤ 0.5%

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