Description

1,4,5,8-Tetrahydro-4A,8A-Ethenonaphthalene is a specialized bicyclic organic compound with a unique bridged structure, serving as a valuable intermediate in advanced organic synthesis. Its rigid, fused ring system makes it a critical building block for constructing complex molecular architectures, particularly in pharmaceutical and materials science research. This high-purity intermediate is essential for chemists and R&D teams developing novel active pharmaceutical ingredients (APIs), agrochemicals, and functional organic materials.

Application

• Pharmaceutical Intermediate: A key synthon for the synthesis of complex drug candidates, particularly those requiring rigid, polycyclic frameworks.
• Agrochemical Research: Used in developing novel pesticides and herbicides where specific stereochemistry and ring strain are advantageous.
• Material Science: Serves as a precursor for organic semiconductors, liquid crystals, and other advanced functional materials due to its conjugated potential.
• Organic Synthesis Building Block: Employed in Diels-Alder reactions and other cycloadditions to construct intricate polycyclic systems in academic and industrial labs.
• Catalyst Ligand Synthesis: Utilized as a backbone for creating novel chiral ligands used in asymmetric catalysis.
• Fine Chemical Production: Integral in the multi-step synthesis of dyes, fragrances, and other high-value specialty chemicals.

Basic Information

Product Name	1,4,5,8-Tetrahydro-4A,8A-Ethenonaphthalene
CAS No.	20295-17-4
Molecular Formula	C₁₂H₁₂
Molecular Weight	156.22 g/mol
Synonyms	1,4,5,8-Tetrahydro-4a,8a-ethenonaphthalene; 4a,8a-Etheno-1,4,5,8-tetrahydronaphthalene; 1,4,5,8-Tetrahydro-4a,8a-ethenonaphthalene; 4a,8a-Ethenonaphthalene, 1,4,5,8-tetrahydro-; 1,4,5,8-Tetrahydro-4a,8a-ethenonaphthalene; Bicyclo[4.4.1]undeca-1,3,5,7,9-pentaene, 2,3,4,5,6,7-hexahydro- (8CI); 1,4,5,8-Tetrahydro-4a,8a-methanonaphthalene
EINECS	Contact for details

Quality Control

Our 1,4,5,8-Tetrahydro-4A,8A-Ethenonaphthalene is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the exacting standards required for research and process development. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.