Description

1,4-Bis(1-Isocyanato-1-Methylethyl)Benzene is a high-purity aromatic diisocyanate monomer. This compound is a critical building block for synthesizing advanced polymers with superior thermal stability and chemical resistance. It is essential for manufacturers in the polyurethane, coatings, and specialty adhesives industries seeking to enhance product performance.

Application

• Polyurethane Elastomers: A key monomer for producing high-performance elastomers with excellent mechanical properties and heat resistance for automotive and industrial parts.
• Specialty Coatings & Paints: Used in formulating advanced polyurethane coatings that offer exceptional durability, gloss retention, and chemical resistance for industrial and automotive finishes.
• Adhesives & Sealants: Serves as a cross-linking agent in high-strength, flexible polyurethane adhesives and sealants for construction and composite bonding.
• Thermosetting Resins: Employed in the synthesis of high-temperature resistant resins for electrical laminates and composite materials.
• Polymer Modification: Acts as a reactive intermediate to introduce isocyanate functionality, modifying polymers for improved toughness and adhesion properties.
• Chemical Synthesis: A versatile intermediate in organic synthesis for creating specialized chemical compounds, including pharmaceuticals and agrochemicals.

Basic Information

Product Name	1,4-Bis(1-Isocyanato-1-Methylethyl)Benzene
CAS No.	2778-41-8
Molecular Formula	C14H16N2O2
Molecular Weight	244.29 g/mol
Synonyms	1,4-Bis(1-Isocyanato-1-Methylethyl)Benzene; 1,4-Bis(2-Isocyanatopropan-2-yl)benzene; Tetramethylxylylene Diisocyanate (TMXDI); m-TMXDI; 1,4-Bis(isocyanatomethyl)tetramethylbenzene; 1,4-Bis(α-isocyanatoisopropyl)benzene; 1,4-Bis(1-isocyanato-1-methylethyl)benzene; 1,4-Bis(2-isocyanato-2-propyl)benzene
EINECS	220-474-1

Quality Control

Our 1,4-Bis(1-Isocyanato-1-Methylethyl)Benzene is manufactured under stringent quality management systems. Every batch undergoes rigorous analytical testing, including assay and impurity profile analysis by HPLC and GC, to ensure high purity and consistency for demanding industrial applications. A comprehensive Certificate of Analysis (COA) is provided with each shipment to guarantee specification compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent moisture ingress and premature polymerization. Isolate from sources of heat, ignition, and incompatible materials such as alcohols, amines, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 99.0 %
Isocyanate Content (NCO)	34.0 - 34.5 %
Hydrolyzable Chloride	≤ 0.01 %
Total Chloride	≤ 0.02 %
Viscosity @ 25°C	Contact for details
Specific Gravity @ 25°C	Contact for details

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