Description

4-Chloro-1,8-Naphthalic Anhydride is a versatile halogenated naphthalic anhydride derivative, serving as a critical intermediate in the synthesis of high-performance pigments and functional materials. Its value lies in its ability to introduce both the naphthalimide core and a reactive chlorine substituent, enabling further functionalization for tailored properties. This compound is essential for manufacturers and R&D teams in the dyes and pigments, organic electronics, and advanced material science sectors seeking to develop products with specific optical or electronic characteristics.

Application

• Key Intermediate for Naphthalimide Dyes & Pigments: Serves as a fundamental building block for synthesizing a wide range of yellow to red organic pigments and fluorescent dyes, valued for their brightness and stability.
• Precursor for Functional Materials: Used in the development of organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and other electronic materials due to its electron-accepting naphthalimide structure.
• Chemical Synthesis Building Block: The reactive chloro group allows for nucleophilic substitution reactions, making it a versatile precursor for more complex naphthalic anhydride derivatives.
• Research & Development: Employed in academic and industrial R&D for exploring new chromophores, sensors, and photoactive compounds.
• Liquid Crystal and Polymer Additives: Can be incorporated into polymers or used to synthesize additives that modify the optical or thermal properties of advanced materials.

Basic Information

Product Name	4-Chloro-1,8-Naphthalic Anhydride
CAS No.	4053-08-1
Molecular Formula	C12H5ClO3
Molecular Weight	232.62 g/mol
Synonyms	4-Chloronaphthalene-1,8-dicarboxylic Anhydride; 4-Chloro-1,8-naphthalenedicarboxylic Anhydride; 4-Chloronaphthalic Anhydride; 1,8-Naphthalic Anhydride, 4-chloro-; 4-Chloro-1,8-naphthalic anhydride; 4-Chloro-1,8-naphthalenedicarboxylic acid anhydride; 4-Chloronaphthalene-1,8-dicarboxylic acid cyclic anhydride
EINECS	223-761-6

Quality Control

Our 4-Chloro-1,8-Naphthalic Anhydride is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for use in sensitive applications like pigment synthesis and electronic materials. Certificates of Analysis (COA) detailing all critical parameters are available upon request to support your quality assurance and regulatory needs.

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). This compound is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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