Description

1,8-Naphthalic Anhydride is a high-purity, versatile organic intermediate derived from naphthalene. This compound is valued for its unique chemical structure, which makes it a critical precursor in the synthesis of advanced materials and specialty chemicals. It is essential for manufacturers in the agrochemical, dye, and polymer industries seeking reliable, high-quality raw materials for their production processes.

Application

• Fluorescent Brightening Agents (FBAs): A key intermediate in the production of optical brighteners for paper, textiles, and detergents.
• Phthalocyanine Pigments & Dyes: Used in the synthesis of high-performance pigments and dyes for plastics, coatings, and inks.
• Agrochemical Intermediates: Serves as a building block for certain herbicides and plant growth regulators.
• Polymer Additives: Employed in the manufacture of monomers for heat-resistant and specialty engineering plastics.
• Organic Synthesis: A versatile reagent for constructing complex polycyclic aromatic structures in pharmaceutical and material science research.
• Liquid Crystal Intermediates: Used in the production of components for electronic display materials.

Basic Information

Product Name	1,8-Naphthalic Anhydride
CAS No.	81-84-5
Molecular Formula	C12H6O3
Molecular Weight	198.18 g/mol
Synonyms	1,8-Naphthalenedicarboxylic Anhydride; Naphthalene-1,8-dicarboxylic Anhydride; 1,8-Naphthalic Acid Anhydride; Naphth[1,8-cd]isobenzofuran-1,3-dione; Acephenanthrylene-1,8-dicarboxylic Anhydride; 1H,3H-Naphtho[1,8-cd]pyran-1,3-dione; NA
EINECS	201-376-5

Quality Control

Our 1,8-Naphthalic Anhydride is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay, impurity profile, and physical property verification, to ensure it meets the high standards required for industrial synthesis. A Certificate of Analysis (COA) is provided with each shipment to guarantee traceability and consistent quality.

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). Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Light yellow to beige crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Melting Point	268°C - 275°C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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