Description

4-Hydroxy-1,8-Naphthalenedicarboxylic Anhydride is a specialized organic intermediate characterized by its fused aromatic ring system and functional anhydride group. This compound matters for its role as a key precursor in the synthesis of high-performance pigments, dyes, and advanced organic materials. It is primarily needed by manufacturers in the colorant, polymer, and pharmaceutical intermediate industries seeking to develop products with specific optical or chemical properties.

Application

• Pigment and Dye Intermediate: Serves as a crucial building block for the synthesis of high-value naphthalimide-based pigments and vat dyes, prized for their color fastness and stability.
• Functional Polymer Synthesis: Used in the production of polyimides and other high-performance polymers, contributing to thermal stability and mechanical strength in advanced materials.
• Organic Light-Emitting Diodes (OLEDs): Acts as a precursor for electron-transport materials or host materials in OLED displays and lighting due to its rigid, planar structure.
• Fluorescent Probe Development: Employed in research and production of chemical sensors and bio-imaging agents that utilize its inherent fluorescence properties.
• Pharmaceutical Intermediate: Utilized in the synthesis of certain active pharmaceutical ingredients (APIs) and diagnostic agents that incorporate the naphthalene core.
• Liquid Crystal Materials: A potential component in the synthesis of compounds for liquid crystal displays (LCDs), influencing alignment and electro-optical properties.

Basic Information

Product Name	4-Hydroxy-1,8-Naphthalenedicarboxylic Anhydride
CAS No.	52083-08-6
Molecular Formula	C12H6O4
Molecular Weight	214.18 g/mol
Synonyms	1,8-Naphthalic Anhydride, 4-Hydroxy-; 4-Hydroxynaphthalene-1,8-dicarboxylic Anhydride; 4-Hydroxy-1,8-naphthalic Anhydride; 4-Hydroxybenzo[de]isochromene-1,3-dione; 4-Hydroxy-1H,3H-naphtho[1,8-cd]pyran-1,3-dione; 4-Hydroxyperylene-3,4-dicarboxylic Anhydride (obsolete); HNDA; 4-OH-NDA
EINECS	Contact for details

Quality Control

Our 4-Hydroxy-1,8-Naphthalenedicarboxylic Anhydride is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency and meets high-purity standards suitable for advanced synthetic applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent degradation from atmospheric moisture. Keep away from incompatible materials such as strong bases and amines.

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	280 - 290 °C
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.