Description

Bicyclo[4.2.0]Octa-1,3,5-Triene, 3-Ethynyl- (9Ci) CAS NO 144597-22-8 is a specialized bicyclic organic compound featuring a strained ring system and a reactive ethynyl group, making it a valuable high-purity building block for advanced chemical synthesis. Its unique molecular architecture is critical for constructing complex frameworks in pharmaceutical and materials science research. This compound is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors for developing novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those requiring complex, strained-ring pharmacophores.
• Agrochemical Research: Used in developing new active ingredients for crop protection agents, leveraging its reactive sites for structural diversification.
• Advanced Material Synthesis: Acts as a monomer or cross-linking agent in the production of specialty polymers with tailored thermal or mechanical properties.
• Ligand and Catalyst Development: Employed in organometallic chemistry to create novel ligands for catalytic systems.
• Academic & Industrial R&D: A fundamental research chemical for exploring new organic reactions and synthesizing complex natural product analogs.
• Fine Chemical Production: Utilized in multi-step synthetic routes for high-value, low-volume specialty chemicals.

Basic Information

Product Name	Bicyclo[4.2.0]Octa-1,3,5-Triene, 3-Ethynyl- (9Ci)
CAS No.	144597-22-8
Molecular Formula	C10H8
Molecular Weight	128.17 g/mol
Synonyms	3-Ethynylbicyclo[4.2.0]octa-1,3,5-triene; 3-Ethynylbicyclo[4.2.0]octa-1(8),2,4-triene; 1,2-Dihydro-4-ethynylcyclobutabenzene; 4-Ethynyl-1,2-dihydrocyclobutabenzene; Bicyclo[4.2.0]octa-1,3,5-triene, 3-ethynyl-; Ethynyl-substituted bicyclo[4.2.0]octatriene
EINECS	Contact for details

Quality Control

Our Bicyclo[4.2.0]Octa-1,3,5-Triene, 3-Ethynyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, GC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality systems are designed to support cGMP compliance for pharmaceutical applications, ensuring traceability and reliability for your critical R&D and scale-up projects.

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. This compound may be sensitive to prolonged exposure to air and moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC/GC)	≥ 95% (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.