Description

5,6-Dichloro-1,2-Dihydroacenaphthylene is a halogenated polycyclic aromatic compound that serves as a versatile and valuable synthetic intermediate. Its unique fused-ring structure with chlorine substituents makes it a critical building block for advanced material science and pharmaceutical research. This compound is primarily sought by R&D chemists and process engineers in the fine chemical, agrochemical, and organic electronics industries for developing novel molecules with specific properties.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of complex drug candidates and active pharmaceutical ingredients (APIs), particularly those requiring a rigid, halogenated aromatic scaffold.
• Agrochemical Synthesis: Used in the development of new herbicides, fungicides, and pesticides, where the chlorinated acenaphthylene core contributes to biological activity.
• Organic Electronic Materials: Serves as a starting material for creating organic semiconductors, charge-transport materials, and luminescent compounds for OLEDs and photovoltaic applications.
• Ligand and Catalyst Development: Employed in organometallic chemistry to construct sophisticated ligands for catalysis and metal-organic frameworks (MOFs).
• Dye and Pigment Manufacturing: Acts as a foundational structure for synthesizing specialized dyes, pigments, and optical brighteners.
• Polymer Modification: Used to introduce halogenated aromatic units into polymer chains to alter thermal stability, flame retardancy, or refractive index.
• Academic and Industrial Research: A valuable reagent for methodological studies in organic synthesis, including cross-coupling and cyclization reactions.

Basic Information

Product Name	5,6-Dichloro-1,2-Dihydroacenaphthylene
CAS No.	4208-97-3
Molecular Formula	C12H8Cl2
Molecular Weight	223.10 g/mol
Synonyms	1,2-Dihydro-5,6-dichloroacenaphthylene; 5,6-Dichloroacenaphthene; 5,6-Dichloro-1,2-dihydroacenaphthylene; Acenaphthylene, 5,6-dichloro-1,2-dihydro-; 5,6-Dichloro-1,2-dihydroacenaphthalene
EINECS	Contact for details

Quality Control

Every batch of 5,6-Dichloro-1,2-Dihydroacenaphthylene is produced and tested under a strict quality management system. We provide comprehensive analytical data to ensure the material meets your precise research and development requirements. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is supplied with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from heat, sparks, and open flames. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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