Description

4-[Bis(4-Isocyanatophenyl)Amino]-2,5-Dimethoxyphenyl Isocyanate is a specialized aromatic polyisocyanate monomer featuring a unique tri-functional structure with a central amine linkage. This compound is engineered to impart enhanced reactivity, cross-linking density, and specific performance characteristics to advanced polymer systems. It is primarily utilized by R&D chemists and formulators in the production of high-performance polyurethane and polyurea coatings, adhesives, and specialty elastomers where tailored mechanical and chemical resistance properties are required.

Application

This specialized isocyanate monomer is a key building block for advanced materials. Its primary applications include:

• High-Performance Polyurethane Coatings: Used as a cross-linking agent in formulations for industrial, automotive, and aerospace coatings requiring exceptional durability, chemical resistance, and weatherability.
• Specialty Adhesives and Sealants: Serves as a core component in the synthesis of adhesives with high bond strength and flexibility for demanding applications.
• Advanced Elastomers: Incorporated into the production of polyurea and polyurethane elastomers for gaskets, rollers, and impact-resistant parts.
• Functional Polymer Modifiers: Acts as a reactive modifier to introduce isocyanate functionality and improve the properties of existing polymer backbones.
• Optical and Electronic Materials: Investigated for use in the synthesis of polymers for optical films, encapsulants, or substrates due to its aromatic and methoxy-substituted structure.
• Cross-linking Agent for Resins: Employed to cross-link hydroxyl- or amine-containing resins, enhancing their thermal and mechanical stability.

Basic Information

Product Name	4-[Bis(4-Isocyanatophenyl)Amino]-2,5-Dimethoxyphenyl Isocyanate
CAS No.	106790-31-2
Molecular Formula	C29H20N4O5
Molecular Weight	504.50 g/mol
Synonyms	4-[Bis(4-isocyanatophenyl)amino]-2,5-dimethoxyphenyl isocyanate; 2,5-Dimethoxy-4-[bis(4-isocyanatophenyl)amino]phenyl isocyanate; Tris(4-isocyanatophenyl)amine derivative; Tri-functional aromatic isocyanate; TDI-based triisocyanate amine; 4-[Bis(p-isocyanatophenyl)amino]-2,5-dimethoxyphenyl isocyanate
EINECS	Contact for details

Quality Control

Our production of 4-[Bis(4-Isocyanatophenyl)Amino]-2,5-Dimethoxyphenyl Isocyanate adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including assay by HPLC, isocyanate content titration, and impurity profiling, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to guarantee traceability and compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. This material is hygroscopic (moisture-sensitive). Recommended storage temperature is 2-8°C (cold chain) under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and premature polymerization. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Isocyanate Content (NCO%)	24.8 - 25.2 %
Melting Point	Contact for details
Moisture (Karl Fischer)	≤ 0.1%
Heavy Metals	≤ 10 ppm

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