Description

2-[(3-Isocyanato-4-Methylphenyl)Methyl]-m-Phenylene Diisocyanate is a specialized aromatic diisocyanate monomer, a key building block in the synthesis of high-performance polyurethane materials. Its unique asymmetrical structure provides distinct reactivity profiles and polymer properties compared to conventional symmetrical diisocyanates. This compound is essential for R&D and production in advanced material science, enabling the creation of tailored polyurethanes with specific mechanical, thermal, and chemical resistance characteristics.

Application

• High-Performance Polyurethane Elastomers: Used as a core monomer to produce elastomers with superior abrasion resistance, low-temperature flexibility, and dynamic properties for industrial wheels, seals, and gaskets.
• Specialty Coatings and Adhesives: Serves as a cross-linking agent in formulations requiring enhanced chemical resistance, adhesion to difficult substrates, and weatherability for automotive, marine, and industrial protective coatings.
• Advanced Polyurethane Dispersions (PUDs): A key component in the synthesis of waterborne PUDs for eco-friendly coatings, inks, and leather finishing with high performance.
• Thermosetting Polymers and Composites: Employed in resin systems for fiber-reinforced composites, offering excellent heat resistance and mechanical strength for aerospace and automotive applications.
• Polyurethane Foams with Modified Properties: Used to modify the cell structure and physical properties of flexible and rigid foams, targeting specific density and insulation characteristics.
• Chemical Intermediate for Specialty Products: Acts as a precursor for further chemical synthesis, including blocked isocyanates, prepolymers, and other custom derivatives for niche applications.

Basic Information

Product Name	2-[(3-Isocyanato-4-Methylphenyl)Methyl]-m-Phenylene Diisocyanate
CAS No.	94213-37-3
Molecular Formula	C16H12N2O4
Molecular Weight	296.28 g/mol
Synonyms	1,3-Diisocyanato-2-[(3-isocyanato-4-methylphenyl)methyl]benzene; 2-[(3-Isocyanato-4-methylphenyl)methyl]-1,3-phenylene diisocyanate; 3,3'-Dimethyl-4,4'-diisocyanatodiphenylmethane isomer; Asymmetric Trimethylphenylmethane Triisocyanate derivative; m-TMXDI (related asymmetric isomer); Modified MDI derivative; 2-[(3-Isocyanato-4-methylbenzyl)]-1,3-diisocyanatobenzene
EINECS	Contact for details

Quality Control

Our production of 2-[(3-Isocyanato-4-Methylphenyl)Methyl]-m-Phenylene Diisocyanate adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. The material is characterized using advanced analytical techniques including HPLC, GC, and FTIR to confirm identity, assay, and impurity profiles. Certificates of Analysis (COA) detailing all critical specifications are provided with each shipment. Our quality system is designed to support applications requiring reliable material performance in demanding industrial and R&D settings.

Storage

Preserve in a tightly closed, moisture-proof container under a dry inert atmosphere (e.g., nitrogen or argon), protected from light. Store in a cool, dry, well-ventilated area at temperatures recommended on the specific product label or Safety Data Sheet (typically 15-25°C). Due to its hygroscopic and moisture-sensitive nature, containers must be kept sealed and allowed to reach ambient temperature before opening to prevent condensation and hydrolysis. Isolate from moisture, heat, and incompatible materials such as alcohols, amines, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.5%
Isocyanate Content (NCO%)	Contact for details
Hydrolyzable Chloride	≤ 50 ppm
Viscosity (at 25°C)	Contact for details
Specific Gravity (at 25°C)	Contact for details

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