Description

2,7-Naphthalenediyldiisocyanate is a specialized aromatic diisocyanate monomer, a key building block in polymer chemistry. Its rigid naphthalene backbone provides enhanced thermal stability and mechanical properties to the resulting polymeric materials. This compound is essential for manufacturers in the advanced materials sector seeking to develop high-performance polyurethanes, polyureas, and other specialty polymers for demanding applications.

Application

• High-Performance Polyurethane Elastomers: Used as a chain extender or crosslinker to produce elastomers with superior heat resistance, mechanical strength, and chemical stability for industrial components.
• Specialty Coatings and Adhesives: A critical raw material for formulating advanced coatings, sealants, and adhesives that require excellent durability, weatherability, and adhesion to challenging substrates.
• Thermoplastic Polyurethanes (TPU): Imparts rigidity and high-temperature performance to TPUs used in automotive, wire & cable, and industrial film applications.
• Polyurea Spray Systems: Contributes to the rapid-setting, abrasion-resistant, and waterproof properties of polyurea linings and protective coatings for infrastructure and containment.
• Advanced Composite Materials: Serves as a reactive intermediate in the synthesis of resins for fiber-reinforced composites in aerospace and automotive industries.
• Chemical Synthesis Intermediate: Utilized in organic synthesis to create novel monomers, dendrimers, and other complex chemical architectures for research and development.

Basic Information

Product Name	2,7-Naphthalenediyldiisocyanate
CAS No.	14353-01-6
Molecular Formula	C₁₂H₆N₂O₂
Molecular Weight	210.19 g/mol
Synonyms	2,7-Diisocyanatonaphthalene; Naphthalene-2,7-diyl diisocyanate; 2,7-NDI; NDI; 2,7-Naphthalene Diisocyanate; 2,7-Bis(isocyanato)naphthalene; 1,3-Diisocyanatonaphthalene (incorrect but common misnomer); NSC 406925
EINECS	Contact for details

Quality Control

Our 2,7-Naphthalenediyldiisocyanate is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing to ensure consistent purity, reactivity, and performance. Specifications are aligned with industry requirements for polymer-grade intermediates. A Certificate of Analysis (COA) detailing key parameters such as assay, isocyanate content, and impurity profile is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. This product is hygroscopic (moisture-sensitive) and must be kept under a dry inert atmosphere (e.g., nitrogen or argon) to prevent reaction with atmospheric moisture. Recommended storage temperature is 2-8°C for long-term stability. Keep away from strong bases and incompatible materials such as alcohols, amines, and water.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Isocyanate Content (NCO)	Contact for details
Hydrolyzable Chloride	≤ 0.1%
Melting Point	Contact for details
Moisture (Karl Fischer)	≤ 0.1%

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