Description

1,2,3,4-Tetrahydro-4A,8A-Ethenonaphthalene is a specialized bicyclic organic compound with the CAS number 24139-33-1, valued for its unique fused ring structure that serves as a versatile intermediate in advanced organic synthesis. Its rigid, bridged framework makes it a critical building block for constructing complex molecular architectures in pharmaceutical and material science research. This compound is primarily sought by R&D chemists and process development scientists working on novel active pharmaceutical ingredients (APIs), agrochemicals, and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel drug candidates, particularly those with complex polycyclic or bridged ring systems.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides where its specific carbon skeleton imparts desired biological activity.
• Material Science Research: Serves as a precursor for organic semiconductors, liquid crystals, or other functional organic materials requiring rigid, planar structures.
• Organic Synthesis Building Block: Employed in Diels-Alder reactions and other cycloadditions to construct intricate natural product analogs and complex molecules.
• Catalyst Ligand Development: Its structure can be functionalized to create novel ligands for asymmetric catalysis and transition metal complexes.
• Fine Chemical Production: Used in the custom synthesis of high-value, low-volume specialty chemicals for various industrial applications.

Basic Information

Product Name	1,2,3,4-Tetrahydro-4A,8A-Ethenonaphthalene
CAS No.	24139-33-1
Molecular Formula	C12H12
Molecular Weight	156.23 g/mol
Synonyms	1,2,3,4-Tetrahydro-4a,8a-ethenonaphthalene; 4a,8a-Etheno-1,2,3,4-tetrahydronaphthalene; 1,2,3,4-Tetrahydro-4a,8a-ethenonaphthalene; Bicyclo[4.4.0]deca-1,3,5,7,9-pentaene, 1,2,3,4-tetrahydro-; 1,2,3,4-Tetrahydro-4a,8a-ethenonaphthalin; 4a,8a-Etheno-1,2,3,4-tetrahydronaphthalin; 1,2,3,4-Tetrahydro-4a,8a-ethenonaphthalene (mixed isomers); 4a,8a-Methanonaphthalene, 1,2,3,4-tetrahydro-
EINECS	Contact for details

Quality Control

Our 1,2,3,4-Tetrahydro-4A,8A-Ethenonaphthalene is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatography (HPLC/GC) and spectroscopic methods (NMR, IR), to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, documenting critical parameters such as assay purity and impurity profiles. Our quality system is designed to meet the stringent requirements of research and development as well as cGMP environments for non-GMP use.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residual Solvents (GC)	Complies with ICH guidelines
Water Content (KF)	< 0.5%

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