Description

3-(p-Isocyanatobenzyl)-p-Tolyl Isocyanate is a specialized aromatic diisocyanate monomer featuring two reactive isocyanate groups on distinct aromatic rings. This compound matters for its ability to act as a key building block in the synthesis of high-performance polyurethane and polyurea polymers, offering tailored cross-linking density and structural rigidity. Industries such as specialty coatings, advanced adhesives, and high-temperature resistant elastomers require this chemical to develop materials with enhanced mechanical properties and chemical resistance.

Application

• As a cross-linking agent in the formulation of high-durability polyurethane coatings for industrial and automotive applications.
• Synthesis of specialty polyurea elastomers with superior abrasion and chemical resistance for protective linings and seals.
• Production of high-performance adhesives and sealants requiring excellent thermal stability and bond strength.
• Manufacturing of advanced composite materials, where it is used as a resin modifier to enhance interfacial properties.
• Key intermediate in the research and development of pharmaceuticals and agrochemicals, exploiting its reactive isocyanate groups.
• Used in the creation of specialty isocyanate-based additives for polymer modification and property enhancement.

Basic Information

Product Name	3-(p-Isocyanatobenzyl)-p-Tolyl Isocyanate
CAS No.	78062-15-4
Molecular Formula	C16H12N2O2
Molecular Weight	264.28 g/mol
Synonyms	1-Isocyanato-4-[(4-isocyanatophenyl)methyl]benzene; 4,4'-Methylenebis(phenyl isocyanate) isomer; Bis(4-isocyanatophenyl)methane derivative; 3-(4-Isocyanatobenzyl)-4-methylphenyl isocyanate; p-Tolyl 3-(p-isocyanatobenzyl) isocyanate; Desmodur® related intermediate; Mondur® related intermediate; Aromatic diisocyanate monomer
EINECS	Contact for details

Quality Control

Our production of 3-(p-Isocyanatobenzyl)-p-Tolyl Isocyanate adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, isocyanate content determination, and impurity profiling. Certificates of Analysis (COA) documenting full specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and polymerization. Isocyanate compounds should be stored separately from moisture, amines, alcohols, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Isocyanate Content (NCO)	31.0 - 32.0 %
Hydrolyzable Chloride	≤ 0.1 %
Color (APHA)	≤ 50
Moisture (Karl Fischer)	≤ 0.05 %

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