Description

4-Cyclohexene-1,2-Dicarbonyl Dichloride (9Ci) is a highly reactive acid chloride derivative of a cyclohexene dicarboxylic acid, serving as a critical building block in advanced organic synthesis. Its value lies in its dual functionality, enabling efficient formation of amide, ester, and anhydride linkages in a single step, which is essential for constructing complex molecular architectures. This compound is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty polymer industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key synthon for the production of complex heterocycles, active pharmaceutical ingredients (APIs), and prodrugs, particularly in medicinal chemistry research.
• Agrochemical Synthesis: Used in the manufacture of advanced herbicides, fungicides, and plant growth regulators requiring specific cyclic structures.
• Polymer Chemistry: Serves as a monomer or cross-linking agent for synthesizing specialty polyamides, polyimides, and polyester resins with enhanced thermal or mechanical properties.
• Ligand and Catalyst Development: Precursor for creating novel chelating ligands and organometallic catalysts used in asymmetric synthesis and polymerization processes.
• Dye and Pigment Manufacturing: Intermediate in the synthesis of specialized colorants and photostable pigments for high-performance applications.
• Material Science Research: Building block for developing novel organic frameworks, dendritic polymers, and other advanced functional materials.

Basic Information

Product Name	4-Cyclohexene-1,2-Dicarbonyl Dichloride (9Ci)
CAS No.	52890-05-8
Molecular Formula	C8H8Cl2O2
Molecular Weight	207.05 g/mol
Synonyms	1,2-Cyclohexenedicarbonyl Dichloride; 4-Cyclohexene-1,2-dicarboxylic Acid Dichloride; 1,2,3,6-Tetrahydrophthaloyl Dichloride; 3-Cyclohexene-1,2-dicarbonyl Dichloride; Tetrahydrophthaloyl Chloride; NSC 163063; 4-Cyclohexene-1,2-dicarboxylic dichloride
EINECS	Contact for details

Quality Control

Our 4-Cyclohexene-1,2-Dicarbonyl Dichloride is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatographic purity assays and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are available upon request to support your quality assurance and regulatory documentation needs.

Storage

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

Specification

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