Description

5-(o-Isocyanatobenzyl)-o-Tolyl Isocyanate is a specialized aromatic diisocyanate monomer featuring two reactive isocyanate groups on distinct aromatic rings. This compound matters as a critical building block for synthesizing high-performance polyurethane and polyurea polymers with tailored properties. It is needed by R&D chemists and formulators in the advanced materials sector, particularly for creating specialty coatings, adhesives, and elastomers that require specific crosslink density and chemical resistance.

Application

• Polymer Synthesis: A key monomer for producing custom polyurethanes and polyureas with enhanced thermal and mechanical stability.
• Advanced Coatings: Used in formulating high-durability, chemical-resistant industrial and protective coatings.
• Specialty Adhesives & Sealants: Imparts strong adhesion and flexibility in high-performance bonding applications.
• Elastomer Production: Serves as a crosslinking agent in the manufacture of specialty rubbers and elastic materials.
• Chemical Intermediate: Employed in organic synthesis to introduce isocyanate functionality for further derivatization.
• Research & Development: Utilized in academic and industrial labs for developing novel polymeric materials and studying structure-property relationships.

Basic Information

Product Name	5-(o-Isocyanatobenzyl)-o-Tolyl Isocyanate
CAS No.	78062-19-8
Molecular Formula	C16H12N2O2
Molecular Weight	264.28 g/mol
Synonyms	1,1'-Methylenebis(2-isocyanatobenzene); Bis(2-isocyanatophenyl)methane; 2,2'-Methylenediphenyl Diisocyanate (2,2'-MDI); o,o'-Methylenediphenyl Diisocyanate; 2-Isocyanatobenzyl 2-Isocyanatophenyl Ether (alternative naming); Dilisocyanatodiphenylmethane, 2,2'-isomer; NSC 406925; 5-(2-Isocyanatobenzyl)-2-methylphenyl isocyanate
EINECS	Contact for details

Quality Control

Our production of 5-(o-Isocyanatobenzyl)-o-Tolyl Isocyanate adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot is characterized using advanced analytical techniques including HPLC, GC, and FTIR. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment, supporting your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept sealed under a dry inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and polymerization. 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 to structure
Assay (HPLC)	≥ 98.0%
Isocyanate Content (NCO)	Contact for details
Hydrolyzable Chloride	≤ 0.1%
Water Content (Karl Fischer)	≤ 0.05%

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