Description

2,3,6,7-Naphthalenetetracarboxylic2,3:6,7-Dianhydride is a high-purity, polycyclic aromatic dianhydride building block essential for advanced material synthesis. Its rigid, planar structure and multiple reactive sites make it a critical precursor for creating high-performance polymers with exceptional thermal stability and tailored electronic properties. This compound is primarily sought by R&D and production teams in the electronics, specialty polymer, and advanced pigment industries.

Application

• Polyimide Synthesis: A key monomer for producing high-temperature, high-strength polyimide films and coatings used in flexible electronics and aerospace.
• Liquid Crystal Polymers (LCPs): Serves as a rigid-rod component to enhance the thermal and mechanical performance of LCPs for connectors and precision molded parts.
• Organic Semiconductors: Used as a core building block for n-type organic semiconductor materials in OFETs (Organic Field-Effect Transistors) and OLEDs.
• Perylene-based Pigments & Dyes: Acts as a crucial intermediate in the synthesis of perylene tetracarboxylic diimide (PTCDI) pigments, known for exceptional lightfastness and color intensity.
• Cross-linking Agent: Functions as a cross-linker in epoxy and other resin systems to improve heat resistance and mechanical strength.
• Research & Development: A valuable reagent for academic and industrial research into novel conjugated systems and functional materials.

Basic Information

Product Name	2,3,6,7-Naphthalenetetracarboxylic2,3:6,7-Dianhydride
CAS No.	3711-01-1
Molecular Formula	C14H4O6
Molecular Weight	268.18 g/mol
Synonyms	2,3,6,7-Naphthalenetetracarboxylic Dianhydride; NTCDA; 1H,3H-Naphtho[1,8-cd:5,6-c'd']dipyran-1,3,5,7-tetrone; Naphthalene-2,3,6,7-tetracarboxylic Dianhydride; Perylene-3,4,9,10-tetracarboxylic Dianhydride Tetracarboxylic Acid Dianhydride Precursor; 2,3,6,7-NTCDA
EINECS	223-052-1

Quality Control

Our 2,3,6,7-Naphthalenetetracarboxylic2,3:6,7-Dianhydride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for sensitive electronic and polymer applications. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical characteristics is 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). This material is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	> 300 °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.