Description

1,2,3,4,5,8-Hexahydro-4A,8A-Ethenonaphthalene is a specialized polycyclic hydrocarbon building block with a unique bridged bicyclic structure, offering significant value in advanced organic synthesis. This compound serves as a critical precursor for synthesizing complex molecular architectures, including strained ring systems and functionalized intermediates for pharmaceuticals and advanced materials. It is primarily sought by R&D chemists and process development teams in the pharmaceutical, agrochemical, and specialty chemical industries for creating novel compounds with specific stereochemical and electronic properties.

Application

• Pharmaceutical Intermediate: A key starting material for the synthesis of novel drug candidates, particularly those requiring complex, polycyclic core structures.
• Agrochemical Synthesis: Used in the development of new active ingredients for crop protection agents, leveraging its unique carbon skeleton.
• Material Science Research: Serves as a monomer or building block for developing novel polymers, liquid crystals, or organic electronic materials.
• Organic Synthesis Reagent: Employed in Diels-Alder reactions and other cycloadditions to construct intricate polycyclic frameworks in academic and industrial research.
• Fragrance & Flavor Chemistry: Potential intermediate for synthesizing complex terpenoid-like aroma molecules due to its hydrocarbon backbone.
• Catalyst Ligand Development: The rigid, bridged structure can be functionalized to create novel ligands for asymmetric catalysis.

Basic Information

Product Name	1,2,3,4,5,8-Hexahydro-4A,8A-Ethenonaphthalene
CAS No.	24139-32-0
Molecular Formula	C12H14
Molecular Weight	158.24 g/mol
Synonyms	4a,8a-Ethenonaphthalene, 1,2,3,4,5,8-hexahydro-; 1,2,3,4,5,8-Hexahydro-4a,8a-ethenonaphthalene; 4a,8a-Methanonaphthalene, 1,2,3,4,5,8-hexahydro-; Bicyclo[4.4.1]undeca-1,3,5,7,9-pentaene, 11,11a-dihydro-; 11,11a-Dihydrobicyclo[4.4.1]undeca-1,3,5,7,9-pentaene
EINECS	Contact for details

Quality Control

Our 1,2,3,4,5,8-Hexahydro-4A,8A-Ethenonaphthalene is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatography (GC/HPLC) and spectroscopic methods (NMR, IR), to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical quality parameters. Our quality system is designed to support cGMP and ISO standards for reliable supply to regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials. For long-term storage, consider under an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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