Description

2,6-Naphthalenediyldiisocyanate (CAS NO 13753-49-6) is a specialized aromatic diisocyanate monomer essential for synthesizing high-performance polyurethane and polyurea polymers. Its rigid, symmetrical naphthalene backbone imparts superior thermal stability, chemical resistance, and mechanical strength to the resulting materials, making it a critical component for demanding applications. This product is primarily targeted at manufacturers in the advanced coatings, high-temperature adhesives, and specialty elastomers industries who require materials with exceptional durability.

Application

• Synthesis of high-performance, thermally stable polyurethane coatings for industrial and automotive applications.
• Production of specialty adhesives and sealants with enhanced chemical and heat resistance.
• Manufacturing of elastomers and foams for demanding environments in aerospace and heavy machinery.
• Key monomer for polyurea spray coatings requiring fast cure times and extreme durability.
• Raw material for advanced engineering plastics and composites.
• Research and development of novel polymer systems in academic and industrial laboratories.

Basic Information

Product Name	2,6-Naphthalenediyldiisocyanate
CAS No.	13753-49-6
Molecular Formula	C12H6N2O2
Molecular Weight	210.19 g/mol
Synonyms	2,6-Diisocyanatonaphthalene; NDI; 2,6-Naphthalene Diisocyanate; 1,5-Diisocyanato-2,6-naphthalene; 2,6-Naphthalene Diisocyanate; 2,6-Bis(isocyanato)naphthalene; Naphthalene-2,6-diyl diisocyanate; 2,6-Naphthalenediisocyanate
EINECS	237-333-0

Quality Control

Our 2,6-Naphthalenediyldiisocyanate is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, isocyanate content, and impurity profile analysis. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept under a dry inert atmosphere (e.g., nitrogen or argon) to prevent reaction with atmospheric moisture. Keep away from heat, sparks, open flames, and incompatible materials such as alcohols, amines, and water.

Specification

Item	Specification
Appearance	White to pale yellow crystalline solid
Identification (IR)	Conforms
Assay (HPLC)	≥ 99.0 %
Isocyanate Content (NCO)	39.8 - 40.2 %
Hydrolyzable Chlorine	≤ 0.01 %
Melting Point	126 - 130 °C

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