Description

4,5-Dichloronaphthalene-1,8-Dicarboxylic Anhydride is a specialized halogenated naphthalene derivative used as a high-performance chemical intermediate. This compound is valued for its ability to impart specific chemical and thermal properties to advanced materials. It is primarily sought by manufacturers in the polymer, dye, and advanced electronics sectors for synthesizing heat-resistant polymers, functional dyes, and specialty pigments.

Application

• Polymer Synthesis: A key monomer for producing high-performance, heat-resistant polyimides and polyamides used in aerospace and electronics.
• Functional Dyes & Pigments: Serves as a crucial intermediate in the manufacture of high-grade, light-fast vat dyes and specialty organic pigments.
• Liquid Crystal Materials: Used in the synthesis of halogenated components for liquid crystal displays (LCDs) to modify dielectric and optical properties.
• Organic Synthesis: Acts as a versatile building block for creating complex organic molecules in pharmaceutical and agrochemical research.
• Flame Retardant Additives: Incorporated into polymer formulations to enhance flame retardancy due to its chlorine content.
• Chemical Research: Employed in academic and industrial R&D for developing novel materials with tailored functionalities.

Basic Information

Product Name	4,5-Dichloronaphthalene-1,8-Dicarboxylic Anhydride
CAS No.	7267-14-3
Molecular Formula	C₁₂H₄Cl₂O₃
Molecular Weight	267.06 g/mol
Synonyms	1,8-Naphthalic Anhydride, 4,5-dichloro-; 4,5-Dichloro-1,8-naphthalic anhydride; 4,5-Dichloronaphthalene-1,8-dicarboxylic acid anhydride; 4,5-Dichloro-1,8-naphthalenedicarboxylic anhydride; 4,5-Dichloronaphthalic anhydride; DNCA; 1H,3H-Naphtho[1,8-cd]pyran-1,3-dione, 6,7-dichloro-
EINECS	Contact for details

Quality Control

Our 4,5-Dichloronaphthalene-1,8-Dicarboxylic Anhydride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

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