Description

2,5-Cyclohexadiene-1-Carbonyl Chloride, 2-Methyl- (9Ci) is a specialized organic intermediate featuring a reactive acid chloride group on a substituted cyclohexadiene ring. This compound matters as a versatile building block for synthesizing complex molecules, particularly in fine chemical and pharmaceutical research where its unique structure enables the introduction of the 2-methyl-1,4-cyclohexadiene moiety. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced material industries for constructing novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly those requiring a functionalized diene structure.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides where its reactive chloride facilitates coupling reactions.
• Polymer Chemistry: Serves as a monomer or co-monomer precursor for creating specialty polymers with unique thermal or optical properties.
• Ligand and Catalyst Development: Employed in the preparation of complex organic ligands for asymmetric catalysis and metal-organic frameworks (MOFs).
• Fine Chemical Production: Intermediate in the multi-step synthesis of flavors, fragrances, and other high-value specialty chemicals.
• Academic & Industrial Research: A valuable reagent for methodological studies in organic synthesis, including Diels-Alder and nucleophilic acyl substitution reactions.

Basic Information

Product Name	2,5-Cyclohexadiene-1-Carbonyl Chloride, 2-Methyl- (9Ci)
CAS No.	123862-86-2
Molecular Formula	C8H9ClO
Molecular Weight	156.61 g/mol
Synonyms	2-Methyl-2,5-cyclohexadiene-1-carbonyl chloride; 2-Methyl-1,4-cyclohexadiene-1-carbonyl chloride; 2-Methyl-δ1,4-cyclohexadiene-1-carbonyl chloride; 2-Methyl-2,5-dihydrobenzoyl chloride; 1-Carbonyl chloride-2-methyl-2,5-cyclohexadiene; 2-Methyl-1,4-cyclohexadienecarboxylic acid chloride; 2-Methyl-2,5-cyclohexadienecarboxylic acid chloride
EINECS	Contact for details

Quality Control

Our 2,5-Cyclohexadiene-1-Carbonyl Chloride, 2-Methyl- (9Ci) is produced under strict quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, 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, and well-ventilated place at a controlled room temperature (typically 15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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