Description

2,7-Dichloronaphthalene is a halogenated naphthalene derivative of significant industrial importance, serving as a versatile synthetic intermediate. Its value lies in its ability to impart specific chemical properties and act as a building block for more complex molecular architectures. This compound is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop advanced materials and active ingredients.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with naphthalene-based scaffolds.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and other crop protection agents where the dichloronaphthalene structure provides specific biological activity.
• Organic Light-Emitting Diodes (OLEDs): Acts as a core material or a functionalized intermediate in the development of electron-transporting or host materials for display and lighting technologies.
• Dye and Pigment Manufacturing: Serves as a starting material for synthesizing specific chlorinated dyes and high-performance pigments.
• Liquid Crystal Materials: Utilized as a rigid, planar building block in the design of liquid crystal molecules for electronic displays.
• Polymer Modification: Incorporated as a monomer or additive to impart flame retardancy, thermal stability, or specific optical properties to engineered polymers.
• Research & Development: A valuable reagent in organic chemistry research for cross-coupling reactions and the study of halogenated aromatic systems.

Basic Information

Product Name	2,7-Dichloronaphthalene
CAS No.	2198-77-8
Molecular Formula	C10H6Cl2
Molecular Weight	197.06 g/mol
Synonyms	2,7-Dichloronaphthalene; Naphthalene, 2,7-dichloro-; 2,7-Dichloronaphthalin; 2,7-DCN; NSC 404080; 1,6-Dichloronaphthalene (incorrect but common misnomer); 2,7-Dichloro-naphthalene
EINECS	218-593-5

Quality Control

Our 2,7-Dichloronaphthalene is produced under a stringent quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets the high-purity standards required for sensitive synthetic applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided and available upon request, ensuring full traceability and compliance with your internal quality protocols.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	115 - 119 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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