Description

3,4-Dihydro-1,2-Naphthalenedicarboxylic Anhydride is a versatile cyclic anhydride intermediate used in the synthesis of advanced polymers and fine chemicals. Its value lies in its reactive anhydride group, which enables efficient ring-opening reactions for creating amides, imides, and esters with tailored properties. This compound is essential for R&D chemists and manufacturers in the polymer, pharmaceutical, and specialty chemical industries seeking to develop high-performance materials and active pharmaceutical ingredients (APIs).

Application

• Polymer Synthesis: Key monomer for producing polyimides, polyamides, and epoxy curing agents, imparting thermal stability and mechanical strength to high-performance plastics and resins.
• Pharmaceutical Intermediates: Serves as a crucial building block in the multi-step synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Liquid Crystal Polymers (LCPs): Used in the manufacture of monomers for LCPs, which are essential for electronics, displays, and high-temperature applications.
• Dye and Pigment Manufacturing: Intermediate in the synthesis of organic pigments and dyes, contributing to colorants for inks, coatings, and plastics.
• Adhesive & Coating Formulations: Modifies properties of industrial adhesives and coatings, enhancing durability, chemical resistance, and adhesion.
• Research & Development: A valuable reagent for academic and industrial R&D in organic chemistry and materials science for exploring new synthetic pathways.

Basic Information

Item	Details
Product Name	3,4-Dihydro-1,2-Naphthalenedicarboxylic Anhydride
CAS No.	37845-14-0
Molecular Formula	C₁₂H₈O₃
Molecular Weight	200.19 g/mol
Synonyms	1,2,3,4-Tetrahydro-1,4-epoxynaphthalene-2,3-dicarboxylic Anhydride; 3,4-Dihydro-1H,2H-naphtho[1,2-c]furan-1,3-dione; 1,4-Epoxy-1,2,3,4-tetrahydronaphthalene-2,3-dicarboxylic Anhydride; 1,2-Naphthalenedicarboxylic Anhydride, 3,4-dihydro-; Tetrahydro-1,4-epoxynaphthalene-2,3-dicarboxylic Anhydride
EINECS	Contact for details

Quality Control

Our 3,4-Dihydro-1,2-Naphthalenedicarboxylic Anhydride is produced under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR spectroscopy, to ensure it meets exacting standards for consistency and performance. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent degradation from atmospheric moisture. Keep away from incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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