Description

1,3-Cyclohexadiene, 2,5-Diethynyl- (9Ci) is a specialized, high-value organic intermediate featuring a conjugated diene core with terminal alkyne functionalities. This unique molecular architecture makes it a critical building block for advanced material synthesis, particularly in the development of novel polymers and functional organic frameworks. It is primarily sought after by R&D and production teams in the pharmaceutical, agrochemical, and advanced materials sectors for constructing complex molecular scaffolds.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of complex active pharmaceutical ingredients (APIs) and drug candidates, leveraging its reactive diene and alkyne groups for cycloaddition and coupling reactions.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators requiring specific cyclic structures.
• Advanced Polymer & Material Science: Acts as a monomer or cross-linking agent for creating specialty polymers, including conductive polymers, liquid crystals, and high-performance resins with tailored thermal and optical properties.
• Organic Electronic Materials: Employed in the development of organic semiconductors, light-emitting diodes (OLEDs), and photovoltaic materials due to its potential for extended π-conjugation.
• Chemical Research & Development: A valuable reagent in academic and industrial R&D for Diels-Alder reactions and click chemistry, enabling the rapid construction of diverse chemical libraries.
• Ligand & Catalyst Development: Utilized for synthesizing novel chelating ligands and organometallic complexes for catalytic applications.

Basic Information

Product Name	1,3-Cyclohexadiene, 2,5-Diethynyl- (9Ci)
CAS No.	591252-03-8
Molecular Formula	C10H8
Molecular Weight	128.17 g/mol
Synonyms	2,5-Diethynyl-1,3-cyclohexadiene; 1,3-Cyclohexadiene, 2,5-diethynyl-; 2,5-Diethynylcyclohexa-1,3-diene; 2,5-Bis(ethynyl)-1,3-cyclohexadiene
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards and precise customer requirements. Each batch is analyzed using advanced techniques including GC, HPLC, and NMR to verify identity, purity, and impurity profiles. Certificates of Analysis (COA) documenting all critical parameters are available upon request, providing full traceability and batch-to-batch consistency for your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. Keep away from heat, sparks, and open flames. Due to its sensitivity, minimize exposure to air and moisture during handling.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0% (Typical 97-99%)
Water Content (KF)	≤ 0.5%

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